FNUS53 KLSX 181715 FWFLSX Fire Weather Planning Forecast for Eastern/Central MO and Southwest IL National Weather Service Saint Louis MO 1214 PM CDT Mon May 18 2026 Several chances for showers and thunderstorms are forecast Monday morning through Tuesday night, with high confidence that the entire forecast area will receive rainfall during this timeframe. A cold front brings cooler and drier conditions Tuesday night into the end of the week. Additional chances for rain return late in the week with low certainty regarding the timing of the best chances. MOZ072-073-083-084-099-182100- Crawford MO-Washington MO-Dent MO-Iron MO-Reynolds MO- Including the cities of Potosi/Salem Ranger District and Salem 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 70 40 80 Chance of Thunder (%) 50 40 70 Temp (24h trend) 84 (-2) 64 (-8) 85 RH % (24h trend) 61 (+14) 100 (+14) 67 Wind 20ft AM(mph) S 7-11 G27 S 5-9 G23 Wind 20ft PM(mph) S 9-13 G27 S 7-11 G26 SW 4-8 G20 Precip Amount 1.06 0.23 0.46 Precip Duration 7 1 7 1700ft mixing temp 81 82 Mixing Hgt(ft-agl) 3330 470 3150 Transport Wnd (m/s) SW 12 S 7 SW 9 Transport Wnd (mph) SW 28 S 16 SW 21 Vent Rate (m/s-m) 15340 810 12270 Excellent Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Showers with thunderstorms likely. Lows in the mid 50s. Highs in the upper 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 70s. South winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Southwest winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the lower 80s. Southeast winds around 5 mph. $$ MOZ074-075-085-182100- Saint Francois MO-Sainte Genevieve MO-Madison MO- Including the cities of Farmington and Fredericktown Ranger District 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Pcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 60 30 90 Chance of Thunder (%) 50 30 70 Temp (24h trend) 85 (-2) 65 (-8) 85 RH % (24h trend) 60 (+14) 96 (+13) 65 Wind 20ft AM(mph) S 9-13 G27 SW 8-12 G24 Wind 20ft PM(mph) S 11-15 G26 S 9-13 G25 SW 6-10 G20 Precip Amount 0.89 0.20 0.41 Precip Duration 4 0 6 1700ft mixing temp 83 83 Mixing Hgt(ft-agl) 3500 470 3510 Transport Wnd (m/s) SW 13 S 7 SW 9 Transport Wnd (mph) SW 29 S 16 SW 21 Vent Rate (m/s-m) 17790 800 12390 Excellent Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy with showers and thunderstorms likely. Lows in the upper 50s. Highs in the upper 60s. North winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid 70s. Northeast winds 5 to 10 mph. .FRIDAY...Showers and a chance of thunderstorms. Lows in the upper 50s. Highs in the mid 70s. South winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 80s. Southwest winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the lower 80s. South winds around 5 mph. $$ MOZ041-047>050-182100- Boone MO-Moniteau MO-Cole MO-Osage MO-Callaway MO- Including the cities of Columbia, Cedar Creek Ranger District, Jefferson City, and Fulton 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 100 60 80 Chance of Thunder (%) 70 50 50 Temp (24h trend) 76 (-10) 64 (-1) 79 RH % (24h trend) 76 (+28) 100 (0) 67 Wind 20ft AM(mph) S 9-13 G38 S 6-10 G21 Wind 20ft PM(mph) S 10-14 G27 S 10-14 G27 NW 6-10 G19 Precip Amount 1.56 0.58 0.21 Precip Duration 10 2 6 1700ft mixing temp 80 71 Mixing Hgt(ft-agl) 1950 470 2240 Transport Wnd (m/s) S 9 S 9 SW 8 Transport Wnd (mph) S 20 S 21 SW 18 Vent Rate (m/s-m) 12510 680 9580 Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 50s. Highs in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows around 50. Highs in the lower 70s. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the lower 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 50s. Highs around 80. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. Southeast winds around 5 mph. $$ MOZ051-059-060-062-065-182100- Montgomery MO-Gasconade MO-Warren MO-Franklin MO-Jefferson MO- Including the cities of Washington, Union, and Sullivan 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 100 60 80 Chance of Thunder (%) 50 50 70 Temp (24h trend) 77 (-10) 65 (-5) 84 RH % (24h trend) 70 (+24) 99 (+8) 68 Wind 20ft AM(mph) S 8-12 G25 S 6-10 G23 Wind 20ft PM(mph) S 9-13 G25 S 8-12 G25 W 5-9 G21 Precip Amount 1.32 0.33 0.29 Precip Duration 11 2 7 1700ft mixing temp 81 79 Mixing Hgt(ft-agl) 2770 460 2980 Transport Wnd (m/s) SW 11 S 7 SW 9 Transport Wnd (mph) SW 25 S 16 SW 21 Vent Rate (m/s-m) 14670 710 11320 Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the lower 50s. Highs in the upper 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the upper 40s. Highs in the lower 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the mid 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 50s. Highs around 80. West winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. Southeast winds around 5 mph. $$ MOZ061-063-064-182100- Saint Charles MO-Saint Louis MO-Saint Louis City MO- Including the cities of Saint Charles and Saint Louis 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 100 60 80 Chance of Thunder (%) 70 60 70 Temp (24h trend) 79 (-9) 66 (-6) 85 RH % (24h trend) 68 (+22) 99 (+13) 64 Wind 20ft AM(mph) S 8-12 G24 S 7-11 G21 Wind 20ft PM(mph) SW 9-13 G24 S 9-13 G23 W 7-11 G20 Precip Amount 0.82 0.13 0.25 Precip Duration 10 1 7 1700ft mixing temp 81 82 Mixing Hgt(ft-agl) 2870 460 3300 Transport Wnd (m/s) SW 10 S 8 SW 9 Transport Wnd (mph) SW 22 S 17 SW 21 Vent Rate (m/s-m) 11840 880 11320 Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy with showers and thunderstorms likely. Lows in the mid 50s. Highs in the upper 60s. North winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the lower 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the mid 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. West winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows around 60. Highs in the mid 80s. South winds around 5 mph. $$ ILZ064-065-069-070-074-079-100>102-182100- Bond IL-Fayette IL-Clinton IL-Marion IL-Washington IL-Randolph IL- Madison IL-Saint Clair IL-Monroe IL- Including the cities of Vandalia, Centralia, Salem, Chester, Sparta, Alton, Edwardsville, Belleville, and Cahokia 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Pcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 80 50 80 Chance of Thunder (%) 70 20 70 Temp (24h trend) 81 (-5) 66 (-6) 86 RH % (24h trend) 65 (+16) 98 (+16) 62 Wind 20ft AM(mph) S 11-15 G25 S 10-14 G22 Wind 20ft PM(mph) SW 11-15 G26 S 9-13 G22 SW 9-13 G21 Precip Amount 0.82 0.20 0.32 Precip Duration 9 1 5 1700ft mixing temp 83 83 Mixing Hgt(ft-agl) 2870 450 3250 Transport Wnd (m/s) SW 13 S 7 SW 10 Transport Wnd (mph) SW 29 S 16 SW 23 Vent Rate (m/s-m) 17350 830 12490 Excellent Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the upper 50s. Highs in the upper 60s. North winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the lower 50s. Highs in the lower 70s. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the mid 70s. Southeast winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows around 60. Highs around 80. Southwest winds 5 to 10 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the lower 60s. Highs in the lower 80s. South winds around 5 mph. $$ MOZ018-019-026-027-034>036-042-052-182100- Knox MO-Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO- Audrain MO-Lincoln MO- Including the cities of Hannibal, Bowling Green, and Mexico 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 90 70 50 Chance of Thunder (%) 50 50 50 Temp (24h trend) 80 (-6) 63 (-1) 78 RH % (24h trend) 66 (+17) 100 (0) 62 Wind 20ft AM(mph) S 8-12 G24 SW 8-12 G25 Wind 20ft PM(mph) S 11-15 G29 S 10-14 G28 NW 7-11 G21 Precip Amount 0.88 0.71 0.18 Precip Duration 9 5 3 1700ft mixing temp 79 67 Mixing Hgt(ft-agl) 1880 470 2800 Transport Wnd (m/s) S 10 S 8 N 8 Transport Wnd (mph) S 23 S 18 N 17 Vent Rate (m/s-m) 9770 880 10160 Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows around 50. Highs in the mid 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the upper 40s. Highs around 70. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the upper 60s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the lower 80s. Southeast winds around 5 mph. $$ ILZ095>098-182100- Adams IL-Brown IL-Pike IL-Calhoun IL- Including the cities of Quincy, Mount Sterling, and Pittsfield 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Mcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 100 60 70 Chance of Thunder (%) 70 50 50 Temp (24h trend) 77 (-8) 64 (0) 79 RH % (24h trend) 72 (+19) 99 (0) 62 Wind 20ft AM(mph) S 8-12 G24 S 8-12 G25 Wind 20ft PM(mph) S 10-14 G26 S 10-14 G26 NW 7-11 G20 Precip Amount 0.96 0.49 0.18 Precip Duration 8 3 5 1700ft mixing temp 77 70 Mixing Hgt(ft-agl) 1600 470 2650 Transport Wnd (m/s) SW 9 S 8 NW 8 Transport Wnd (mph) SW 21 S 18 NW 18 Vent Rate (m/s-m) 7080 840 9330 Fair Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. Lows in the lower 50s. Highs in the upper 60s. Northeast winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the upper 40s. Highs around 70. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the lower 50s. Highs around 70. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the upper 70s. South winds 5 to 10 mph. .SUNDAY...Mostly cloudy. Lows in the upper 50s. Highs in the lower 80s. South winds around 5 mph. $$ ILZ058>060-099-182100- Greene IL-Macoupin IL-Montgomery IL-Jersey IL- Including the city of Litchfield 1214 PM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 100 60 90 Chance of Thunder (%) 70 60 70 Temp (24h trend) 75 (-10) 65 (-5) 82 RH % (24h trend) 69 (+21) 97 (+14) 64 Wind 20ft AM(mph) S 11-15 G26 S 10-14 G23 Wind 20ft PM(mph) S 10-14 G24 S 11-15 G24 W 9-13 G22 Precip Amount 0.95 0.17 0.32 Precip Duration 10 2 6 1700ft mixing temp 77 80 Mixing Hgt(ft-agl) 2220 480 2980 Transport Wnd (m/s) SW 11 S 8 SW 10 Transport Wnd (mph) SW 25 S 18 SW 22 Vent Rate (m/s-m) 10890 1000 11280 Good Poor Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 50s. Highs in the upper 60s. North winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows in the mid 40s. Highs around 70. East winds 5 to 10 mph. .FRIDAY...Mostly cloudy with showers likely and a chance of thunderstorms. Lows in the lower 50s. Highs in the lower 70s. East winds 5 to 10 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the upper 70s. West winds around 5 mph. .SUNDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the lower 80s. South winds around 5 mph. $$