FPUS53 KLSX 191017 ZFPLSX Zone Forecasts National Weather Service Saint Louis MO 517 AM CDT Tue May 19 2026 ILZ100-101-MOZ061-063-064-191800- Madison IL-Saint Clair IL-Saint Charles MO-Saint Louis MO- Saint Louis City MO- Including the cities of Alton, Edwardsville, Belleville, Cahokia, Saint Charles, and Saint Louis 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Mostly cloudy with a chance of thunderstorms. Showers, mainly this morning. Some thunderstorms may produce heavy rainfall. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 90 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 50 percent. .WEDNESDAY...Partly sunny. Highs in the upper 60s. North winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Highs in the lower 70s. Northeast winds 5 to 10 mph. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 60 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the lower 70s. Chance of rain 80 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the upper 70s. Chance of rain 20 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 40 percent. .MEMORIAL DAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. $$ MOZ042-049-050-191800- Audrain MO-Osage MO-Callaway MO- Including the cities of Mexico and Fulton 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Cloudy with a chance of thunderstorms. Showers, mainly this morning. Some thunderstorms may produce heavy rainfall. Highs in the lower 70s. Temperature falling into the mid 60s this afternoon. South winds 5 to 10 mph, becoming northwest 10 to 15 mph this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny. Highs in the mid 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows around 50. Northeast winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY...Mostly cloudy. A slight chance of showers in the afternoon. Highs in the upper 60s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Cloudy. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 70 percent. .FRIDAY...A chance of thunderstorms. Showers likely, mainly in the morning. Highs around 70. Chance of rain 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 70s. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 30 percent. .SUNDAY THROUGH MEMORIAL DAY...Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the lower 80s. Lows around 60. Chance of rain 20 percent. $$ MOZ041-047-048-191800- Boone MO-Moniteau MO-Cole MO- Including the cities of Columbia and Jefferson City 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Cloudy with a chance of thunderstorms. Showers, mainly this morning. Some thunderstorms may produce heavy rainfall. Highs in the upper 60s. Temperature falling into the lower 60s this afternoon. South winds 5 to 10 mph, becoming northwest this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny. Highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY...Mostly cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the upper 60s. East winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .THURSDAY NIGHT...Cloudy. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 70 percent. .FRIDAY...A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper 70s. .SATURDAY NIGHT...Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 30 percent. .SUNDAY THROUGH MEMORIAL DAY...Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 80s. Lows in the lower 60s. Chance of rain 20 percent. $$ ILZ095>097-MOZ018-019-026-027-191800- Adams IL-Brown IL-Pike IL-Knox MO-Lewis MO-Shelby MO-Marion MO- Including the cities of Quincy, Mount Sterling, Pittsfield, and Hannibal 517 AM CDT Tue May 19 2026 .TODAY...Cloudy. Showers likely with a slight chance of thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Highs in the upper 60s. Temperature falling into the lower 60s this afternoon. Southwest winds around 10 mph, becoming northwest this afternoon. Chance of rain 70 percent. .TONIGHT...Mostly cloudy. Much cooler. Less humid with lows around 50. North winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY...Mostly sunny. Highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY...Mostly cloudy. Highs in the upper 60s. East winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY NIGHT...Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the lower 50s. Chance of rain 70 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20 percent. .SATURDAY...Mostly cloudy. Highs in the mid 70s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 60s. Chance of rain20 percent. .MEMORIAL DAY...Mostly cloudy in the morning, then becoming partly sunny. A slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. $$ MOZ034>036-191800- Monroe MO-Ralls MO-Pike MO- Including the city of Bowling Green 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Cloudy with a chance of thunderstorms. Showers, mainly this morning. Some thunderstorms may produce heavy rainfall. Highs around 70. Temperature falling into the mid 60s this afternoon. Southwest winds 5 to 10 mph, becoming northwest this afternoon. Gusts up to 25 mph. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. .WEDNESDAY...Mostly sunny. Highs in the mid 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY...Mostly cloudy. Highs in the upper 60s. East winds 5 to 10 mph with gusts up to 20 mph. .THURSDAY NIGHT...Cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60 percent. .FRIDAY...Showers likely. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 70 percent. .FRIDAY NIGHT AND SATURDAY...Mostly cloudy. Lows in the mid 50s. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Chance of rain 20 percent. $$ ILZ069-070-074-191800- Clinton IL-Marion IL-Washington IL- Including the cities of Centralia and Salem 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Mostly cloudy. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .WEDNESDAY...Mostly cloudy. A chance of showers in the morning. Highs around 70. North winds 5 to 10 mph. Chance of rain 30 percent. .WEDNESDAY NIGHT...Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of rain 20 percent. .THURSDAY...Mostly cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Highs in the lower 70s. Northeast winds 5 to 10 mph. Chance of rain 20 percent. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 60 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows around 60. Chance of rain 50 percent. .SATURDAY AND SATURDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms. Highs in the upper 70s. Lows in the lower 60s. Chance of rain 20 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highsin the lower 80s. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of rain 40 percent. .MEMORIAL DAY...Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. $$ MOZ074-084-085-099-191800- Saint Francois MO-Iron MO-Madison MO-Reynolds MO- Including the city of Farmington 517 AM CDT Tue May 19 2026 .TODAY...Showers likely with a chance of thunderstorms this morning, then showers with thunderstorms likely this afternoon. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 90 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Cooler with lows in the upper 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 50 percent. .WEDNESDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Highs in the upper 60s. North winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Chance of rain 30 percent. .THURSDAY...Mostly cloudy with a 20 percent chance of showers. Highs in the lower 70s. Northeast winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then showers with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 80 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the upper 50s. Chance of rain 50 percent. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 50s. Chance of rain 40 percent. .SUNDAY...Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. .SUNDAY NIGHT AND MEMORIAL DAY...Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 50 percent. $$ MOZ051-052-060-191800- Montgomery MO-Lincoln MO-Warren MO- 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Cloudy with a chance of thunderstorms. Showers, mainly this morning. Some thunderstorms may produce heavy rainfall. Highs in the mid 70s. Temperature falling into the upper 60s this afternoon. South winds 5 to 10 mph, becoming west this afternoon. Gusts up to 25 mph. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms, mainly in the evening. Cooler. Less humid with lows in the lower 50s. North winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .WEDNESDAY...Mostly sunny. Highs in the mid 60s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Highs in the upper 60s. East winds 5 to 10 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows in the mid 50s. Chance of rain 60 percent. .FRIDAY...Showers likely with a chance of thunderstorms. Highs around 70. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. Lows in the mid 50s. .SATURDAY THROUGH SUNDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Highs around 80. Lows in the upper 50s. Chance of rain 20 percent. .MEMORIAL DAY...Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. $$ ILZ098-099-191800- Calhoun IL-Jersey IL- 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Mostly cloudy with a chance of thunderstorms. Showers, mainly this morning. Some thunderstorms may produce heavy rainfall. Highs in the mid 70s. Temperature falling into the lower 70s this afternoon. South winds 10 to 15 mph, becoming west this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Cooler. Less humid with lows in the mid 50s. North winds around 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny. Highs in the upper 60s. Northeast winds 5 to 10 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Highs around 70. Northeast winds 5 to 10 mph. .THURSDAY NIGHT...Cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 50s. Chance of rain 50 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs around 70. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20 percent. .SATURDAY...Partly sunny. Highs in the upper 70s. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows around 60. Highs in the lower 80s. Chance of rain 20 percent. .MEMORIAL DAY...Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent. $$ ILZ058-059-191800- Greene IL-Macoupin IL- 517 AM CDT Tue May 19 2026 .TODAY...Mostly cloudy with a chance of thunderstorms. Showers, mainly this morning. Highs in the mid 70s. South winds 10 to 15 mph, becoming west this afternoon. Chance of rain 90 percent. .TONIGHT...Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Cooler. Less humid with lows in the lower 50s. North winds around 10 mph with gusts up to 20 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny. Highs in the upper 60s. Northeast winds around 10 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs around 70. East winds 5 to 10 mph. .THURSDAY NIGHT...Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 50s. Chance of rain 50 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20 percent. .SATURDAY...Partly sunny. Highs in the upper 70s. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy. A slight chance of showers and thunderstorms. Lows in the mid 50s. Highs in the lower 80s. Chance of rain 20 percent. .SUNDAY NIGHT...Mostly cloudy.A slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent. .MEMORIAL DAY...Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent. $$ ILZ064-065-191800- Bond IL-Fayette IL- Including the city of Vandalia 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall this morning. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .WEDNESDAY...Mostly cloudy with a slight chance of showers in the morning, then partly sunny in the afternoon. Cooler with highs in the upper 60s. North winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s. Northeast winds around 10 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers after midnight. Lows in the mid 50s. Chance of rain 50 percent. .FRIDAY...Showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the upper 50s. Chance of rain 50 percent. .SATURDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 20 percent. .SUNDAY...Partly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of rain 30 percent. .MEMORIAL DAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. $$ ILZ060-191800- Montgomery IL- Including the city of Litchfield 517 AM CDT Tue May 19 2026 .TODAY...Mostly cloudy with a chance of showers and thunderstorms. Highs in the mid 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. .TONIGHT...Mostly cloudy with a chance of showers and thunderstorms. Cooler. Less humid with lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Partly sunny. Highs in the upper 60s. Northeast winds around 10 mph. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 40s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s. East winds around 10 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers after midnight. Lows in the lower 50s. Chance of rain 50 percent. .FRIDAY...Showers likely with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 60s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the mid 50s. Chance of rain 50 percent. .SATURDAY...Mostly cloudy in the morning, thenbecoming partly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 50s. Chance of rain 20 percent. .SUNDAY...Partly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy. A chance of showers after midnight. Lows around 60. Chance of rain 30 percent. .MEMORIAL DAY...Mostly cloudy with a chance of showers in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 30 percent. $$ ILZ079-MOZ075-191800- Randolph IL-Sainte Genevieve MO- Including the cities of Chester and Sparta 517 AM CDT Tue May 19 2026 .TODAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms this morning, then showers and thunderstorms likely this afternoon. Highs in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the upper 50s. Northwest winds 5 to 10 mph. Chance of rain 50 percent. .WEDNESDAY...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Cooler with highs in the upper 60s. North winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 50s. Northeast winds 5 to 10 mph. Chance of rain 20 percent. .THURSDAY...Mostly cloudy with a 20 percent chance of showers. Highs in the lower 70s. Northeast winds 5 to 10 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 50s. Chance of rain 70 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain 80 percent. .FRIDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the evening. Lows in the upper 50s. Chance of rain 40 percent. .SATURDAY...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows around 60. Chance of rain 20 percent. .SUNDAY AND SUNDAY NIGHT...Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Lows in the lower 60s. Chance of rain 40 percent. .MEMORIAL DAY...Partly sunny in the morning, then becoming mostly cloudy. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 50 percent. $$ MOZ059-062-072-073-191800- Gasconade MO-Franklin MO-Crawford MO-Washington MO- Including the cities of Washington, Union, and Sullivan 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...A chance of thunderstorms. Showers. Some thunderstorms may produce heavy rainfall. Highs in the mid 70s. South winds 5 to 10 mph, becoming southwest this afternoon. Gusts up to 25 mph. Chance of rain 90 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Cooler with lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Mostly cloudy. A slight chance of showers in the morning. Highs in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast winds around 5 mph. .THURSDAY...Mostly cloudy with a 20 percent chance of showers. Highs in the lower 70s. East winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then showers likelywith a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 70 percent. .FRIDAY...A chance of thunderstorms. Showers likely. Highs in the lower 70s. Chance of rain 70 percent. .FRIDAY NIGHT...Mostly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 20 percent. .SATURDAY...Mostly cloudy in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs around 80. Chance of rain 40 percent. .SATURDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Chance of rain 20 percent. .SUNDAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 40 percent. .MEMORIAL DAY...Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. $$ ILZ102-MOZ065-191800- Monroe IL-Jefferson MO- 517 AM CDT Tue May 19 2026 ...FLOOD WATCH IN EFFECT UNTIL 1 PM CDT THIS AFTERNOON... .TODAY...Showers with a chance of thunderstorms this morning, then showers and thunderstorms likely this afternoon. Some thunderstorms may produce heavy rainfall this morning. Some thunderstorms may produce heavy rainfall this afternoon. Highs in the upper 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 90 percent. .TONIGHT...Cloudy with a chance of showers and thunderstorms. Lows in the mid 50s. North winds 5 to 10 mph. Chance of rain 40 percent. .WEDNESDAY...Mostly cloudy. A slight chance of showers in the morning. Highs in the upper 60s. North winds 5 to 10 mph. Chance of rain 20 percent. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. Northeast winds around 5 mph. .THURSDAY...Mostly cloudy with a 20 percent chance of showers. Highs in the lower 70s. Northeast winds around 5 mph. .THURSDAY NIGHT...Mostly cloudy. A chance of showers in the evening, then showers likely with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 70 percent. .FRIDAY...A chance of thunderstorms. Showers. Highs in the lower 70s. Chance of rain 80 percent. .FRIDAY NIGHT THROUGH SATURDAY NIGHT...Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 50s. Highs around 80. Chance of rain 20 percent. .SUNDAY...Partly sunny in the morning, then becoming mostly cloudy. A slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 30 percent. .SUNDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 40 percent. .MEMORIAL DAY...Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent. $$