FPUS55 KBOU 190648 ZFPBOU Zone Forecast Product for Northeast Colorado National Weather Service Denver/Boulder CO 1248 AM MDT Tue May 19 2026 COZ039-040-192100- Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County- North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County- Including Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, and Parker 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Cloudy with a slight chance of snow showers. Chance of rain showers after midnight, then a slight chance of rain showers towards sunrise. Patchy fog through the night. Lows in the lower to mid 30s. Chance of precipitation 30 percent. .TUESDAY...Mostly cloudy. Patchy fog in the morning. Slight chance of rain and snow showers in the morning, then a chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 47 to 52. Chance of precipitation 40 percent. .TUESDAY NIGHT...Cloudy with a 50 percent chance of showers. Lows in the upper 30s. .WEDNESDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs near 60. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows near 40. Chance of rain 40 percent. .THURSDAY AND THURSDAY NIGHT...Showers likely and chance of thunderstorms. Highs in the mid to upper 60s. Lows in the lower to mid 40s. Chance of rain 60 percent. .FRIDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the mid 60s. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the lower 40s. Chance of rain 30 percent. .SATURDAY...Partly cloudy with a 10 percent chance of thunderstorms. Highs in the mid 70s. .SATURDAY NIGHT...Partly cloudy. Lows in the mid to upper 40s. .SUNDAY...Mostly sunny. Highs near 80. .SUNDAY NIGHT...Partly cloudy. Lows near 50. .MEMORIAL DAY...Mostly sunny. Highs in the lower to mid 80s. $$ COZ038-192100- Larimer County Below 6000 Feet/Northwest Weld County- Including Fort Collins, Hereford, Loveland, and Nunn 1248 AM MDT Tue May 19 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM MDT THIS MORNING... .REST OF TONIGHT...Mostly cloudy with a 10 percent chance of snow showers. Lows 26 to 32. .TUESDAY...Mostly cloudy. Slight chance of thunderstorms in the afternoon. Highs 47 to 53. Chance of precipitation 10 percent. .TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of rain showers. Lows in the mid to upper 30s. .WEDNESDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the mid 50s to lower 60s. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows in the mid 30s to lower 40s. Chance of rain 30 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the 60s. .THURSDAY NIGHT...Showers likely and chance of thunderstorms. Lows 36 to 42. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the lower to mid 60s. Chance of rain 40 percent. .FRIDAY NIGHT AND SATURDAY...Partly cloudy. Lows near 40. Highs in the lower to mid 70s. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows in the lower to mid 40s. Highs near 80. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s to lower 50s. .MEMORIAL DAY...Mostly sunny. Highs in the lower to mid 80s. $$ COZ041-192100- Elbert/Central and East Douglas Counties Above 6000 Feet- Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 1248 AM MDT Tue May 19 2026 ...FREEZE WARNING IN EFFECT UNTIL 8 AM MDT THIS MORNING... .REST OF TONIGHT...Cloudy. Chance of snow showers after midnight, then a slight chance of snow showers towards sunrise. Patchy fog through the night. Lows near 30. North winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 30 percent. .TUESDAY...Mostly cloudy. Patchy fog in the morning. Slight chance of snow showers in the morning, then a slight chance of thunderstorms in the afternoon. Highs 48 to 54. East winds 10 to 15 mph with gusts up to 20 mph in the afternoon. Chance of snow 20 percent. .TUESDAY NIGHT...Rain showers likely in the evening, then rain showers after midnight. Lows in the 30s. Southeast winds 10 to 15 mph with gusts up to 25 mph after midnight. .WEDNESDAY...Rain showers likely and chance of thunderstorms. Highs in the mid to upper 50s. South winds 10 to 20 mph with gusts up to 35 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Rain showers likely and chance of thunderstorms. Lows in the mid to upper 30s. Chance of rain 70 percent. .THURSDAY AND THURSDAY NIGHT...Showers likely and chance of thunderstorms. Highs in the lower to mid 60s. Lows near 40. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs near 60. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows near 40. Chance of rain 30 percent. .SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs near 70. .SATURDAY NIGHT...Partly cloudy. Lows in the lower to mid 40s. .SUNDAY...Mostly sunny. Highs 73 to 79. .SUNDAY NIGHT...Partly cloudy. Lows 45 to 51. .MEMORIAL DAY...Mostly sunny. Highs 75 to 81. $$ COZ042>045-192100- Northeast Weld County-Central and South Weld County-Morgan County- Central and East Adams and Arapahoe Counties- Including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham, Eaton, Fort Lupton, Greeley, Roggen, Brush, Fort Morgan, Goodrich, Wiggins, Bennett, Byers, Deer Trail, and Leader 1248 AM MDT Tue May 19 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM MDT THIS MORNING... .REST OF TONIGHT...Mostly cloudy. Lows near 30. .TUESDAY...Mostly cloudy. Highs 51 to 57. .TUESDAY NIGHT...Cloudy with a 40 percent chance of showers. Lows in the mid 30s to lower 40s. .WEDNESDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs around 60. Southeast winds 10 to 20 mph with gusts up to 35 mph. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the mid 30s to lower 40s. Southeast winds 10 to 15 mph with gusts up to 20 mph. Chance of rain 30 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the upper 60s. .THURSDAY NIGHT...Showers likely and chance of thunderstorms. Lows near 40. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the mid to upper 60s. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows near 40. .SATURDAY AND SATURDAY NIGHT...Mostly clear. Highs in the 70s. Lows in the lower to mid 40s. .SUNDAY...Mostly sunny. Highs in the lower to mid 80s. .SUNDAY NIGHT...Partly cloudy. Lows in the mid 40s to lower 50s. .MEMORIAL DAY...Mostly sunny. Highs in the 80s. $$ COZ046-047-192100- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center 1248 AM MDT Tue May 19 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM MDT THIS MORNING... .REST OF TONIGHT...Mostly cloudy. Lows near 30. North winds 10 to 20 mph with gusts up to 35 mph. .TUESDAY...Mostly cloudy. Highs 54 to 60. East winds 10 to 15 mph in the afternoon. .TUESDAY NIGHT...Cloudy with a 50 percent chance of rain showers. Lows in the mid to upper 30s. East winds 10 to 15 mph with gusts up to 25 mph. .WEDNESDAY...Rain showers likely and slight chance of thunderstorms. Highs in the mid 50s to lower 60s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Rain showers and chance of thunderstorms. Lows 35 to 41. East winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the 60s. .THURSDAY NIGHT...Showers likely and chance of thunderstorms. Lows near 40. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the lower to mid 60s. Chance of rain 40 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows near 40. Chance of rain 30 percent. .SATURDAY...Partly cloudy with a 10 percent chance of thunderstorms. Highs in the lower to mid 70s. .SATURDAY NIGHT...Mostly clear with a 20 percent chance of thunderstorms. Lows 40 to 46. .SUNDAY...Mostly sunny. Highs near 80. .SUNDAY NIGHT...Partly cloudy. Lows 43 to 49. .MEMORIAL DAY...Mostly sunny. Highs in the lower 80s. $$ COZ048>051-192100- Logan County-Washington County-Sedgwick County-Phillips County- Including Crook, Merino, Sterling, Peetz, Akron, Cope, Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, Haxtun, and Holyoke 1248 AM MDT Tue May 19 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM MDT THIS MORNING... .REST OF TONIGHT...Mostly cloudy. Lows in the lower 30s. North winds 10 to 15 mph with gusts up to 25 mph. .TUESDAY...Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 50s to lower 60s. Northwest winds 10 to 15 mph with gusts up to 20 mph in the morning, becoming light. .TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of showers. Lows in the upper 30s. South winds 10 to 15 mph with gusts up to 25 mph after midnight. .WEDNESDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs near 60. Southeast winds 15 to 25 mph with gusts up to 40 mph. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the upper 30s. Southeast winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 50 percent. .THURSDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the 60s. Chance of rain 30 percent. .THURSDAY NIGHT...Showers likely and chance of thunderstorms. Lows in the lower 40s. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the mid to upper 60s. Chance of rain 40 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows in the lower 40s. .SATURDAY...Partly cloudy. Highs in the mid 70s. .SATURDAY NIGHT THROUGH MEMORIAL DAY...Mostly clear. Lows in the mid to upper 40s. Highs 81 to 87. $$ COZ035-192100- Larimer and Boulder Counties Between 6000 and 9000 Feet- Including Estes Park, Glendevey, Nederland, and Red Feather Lakes 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Chance of snow showers after midnight, then a slight chance of snow showers towards sunrise. Patchy fog through the night. Lows 20 to 28. Chance of snow 40 percent. .TUESDAY...Mostly cloudy. Slight chance of snow showers in the morning, then a chance of snow showers, rain showers and slight chance of thunderstorms in the afternoon. Highs 35 to 45. Chance of precipitation 40 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of rain and snow showers. Lows 25 to 35. Chance of precipitation 40 percent. .WEDNESDAY...Mostly cloudy with a chance of thunderstorms and slight chance of snow showers. Highs 46 to 56. Chance of snow 40 percent. .WEDNESDAY NIGHT...Partly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 26 to 36. Chance of rain 30 percent. .THURSDAY AND THURSDAY NIGHT...Rain showers likely and chance of thunderstorms. Highs 51 to 61. Lows 30 to 40. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a chance of thunderstorms and snow showers. Highs 52 to 62. Chance of snow 40 percent. .FRIDAY NIGHT...Mostly cloudy with a 10 percent chance of rain showers. Lows 31 to 41. .SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 60 to 70. .SATURDAY NIGHT...Partly cloudy. Lows 36 to 46. .SUNDAY...Mostly sunny. Highs 66 to 76. .SUNDAY NIGHT...Partly cloudy. Lows 40 to 50. .MEMORIAL DAY...Mostly sunny. Highs 69 to 79. $$ COZ036-192100- Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below 9000 Feet- Including Bailey, Central City, Evergreen, Georgetown, Idaho Springs, and Westcreek 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Cloudy with a 40 percent chance of snow showers. Patchy fog. Lows 24 to 32. .TUESDAY...Patchy fog in the morning. Cloudy with a chance of snow showers. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 37 to 47. Chance of precipitation 50 percent. .TUESDAY NIGHT...Rain and snow showers likely. Snow accumulation up to 1 inch. Lows 29 to 37. Chance of precipitation 60 percent. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 48 to 58. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 29 to 39. Chance of rain 40 percent. .THURSDAY...Rain showers likely and chance of thunderstorms. Highs 54 to 64. Chance of rain 60 percent. .THURSDAY NIGHT AND FRIDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 32 to 42. Highs 53 to 63. .FRIDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows 33 to 43. .SATURDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs 61 to 71. .SATURDAY NIGHT...Partly cloudy. Lows 37 to 47. .SUNDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 67 to 77. .SUNDAY NIGHT...Partly cloudy. Lows 40 to 50. .MEMORIAL DAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 70 to 80. $$ COZ030-032-192100- Jackson County Below 9000 Feet- Grand and Summit Counties Below 9000 Feet- Including Gould, North Park, Rand, Spicer, Walden, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Chance of snow showers after midnight, then a slight chance of snow showers towards sunrise. Lows 19 to 27. Chance of snow 30 percent. .TUESDAY...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 42 to 52. Chance of precipitation 30 percent. .TUESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Slight chance of rain showers in the evening. Slight chance of snow showers. Lows 23 to 31. Chance of precipitation 10 percent. .WEDNESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 49 to 57. .WEDNESDAY NIGHT...Mostly clear. Lows 23 to 29. .THURSDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 52 to 60. .THURSDAY NIGHT...Rain showers likely, chance of snow showers and slight chance of thunderstorms. Lows 26 to 32. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy with a chance of thunderstorms and snow showers. Highs 52 to 60. Chance of snow 30 percent. .FRIDAY NIGHT...Mostly cloudy. Lows 27 to 33. .SATURDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 59 to 65. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 30 to 36. Highs 66 to 72. .SUNDAY NIGHT...Partly cloudy. Lows 33 to 39. .MEMORIAL DAY...Mostly sunny. Highs 69 to 75.$$ COZ037-192100- Central and Southeast Park County- Including Fairplay, Hartsel, Lake George, and South Park 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Lows in the mid to upper 20s. .TUESDAY...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 42 to 52. Southeast winds 10 to 15 mph in the afternoon. Chance of precipitation 40 percent. .TUESDAY NIGHT...Snow showers likely and chance of rain showers in the evening, then rain and snow showers after midnight. Snow accumulation up to 1 inch. Lows 29 to 35. Southeast winds 10 to 15 mph in the evening, becoming light. .WEDNESDAY...Rain showers likely, chance of thunderstorms and snow showers. Highs 46 to 54. South winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 28 to 36. Chance of rain 50 percent. .THURSDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 53 to 61. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 29 to 35. .FRIDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 55 to 61. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows 31 to 37. .SATURDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 59 to 65. .SATURDAY NIGHT...Partly cloudy. Lows 33 to 39. .SUNDAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs 64 to 70. .SUNDAY NIGHT...Partly cloudy. Lows 36 to 42. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 66 to 72. $$ COZ031-033-192100- West Jackson and West Grand Counties Above 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Including Mt Zirkel, Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, and Willow Creek Pass 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Chance of snow showers after midnight, then a slight chance of snow showers towards sunrise. Lows 15 to 23. Chance of snow 30 percent. .TUESDAY...Mostly cloudy. Chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 32 to 42. Chance of snow 30 percent. .TUESDAY NIGHT...Mostly cloudy with a chance of snow showers in the evening, then partly cloudy with a slight chance of snow showers after midnight. Lows 19 to 29. Chance of snow 30 percent. .WEDNESDAY...Partly cloudy with a chance of thunderstorms and snow showers. Highs 39 to 49. Chance of snow 40 percent. .WEDNESDAY NIGHT...Partly cloudy. Lows 18 to 28. .THURSDAY...Snow showers likely and chance of thunderstorms. Highs 42 to 52. Chance of snow 60 percent. .THURSDAY NIGHT...Snow showers, rain showers likely and chance of thunderstorms. Lows 24 to 32. Chance of precipitation 60 percent. .FRIDAY...Mostly cloudy with a chance of snow showers and thunderstorms. Highs 43 to 53. Chance of snow 40 percent. .FRIDAY NIGHT...Partly cloudy with a 10 percent chance of snow showers. Lows 25 to 33. .SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 49 to 59. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 29 to 37. Highs 56 to 66. .SUNDAY NIGHT...Partly cloudy. Lows 31 to 41. .MEMORIAL DAY...Mostly sunny. Highs 59 to 69. $$ COZ034-192100- South and Southeast Grand/West Central and Southwest Boulder/ Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet- Including Berthoud Pass, Breckenridge, East Slopes Mosquito Range, East Slopes Southern Gore Range, Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Blue Sky, Williams Fork Mountains, and Winter Park 1248 AM MDT Tue May 19 2026 .REST OF TONIGHT...Mostly cloudy. Chance of snow showers after midnight, then a slight chance of snow showers towards sunrise. Lows 17 to 27. Chance of snow 40 percent. .TUESDAY...Mostly cloudy. Slight chance of snow showers in the morning, then a chance of snow showers and slight chance of thunderstorms in the afternoon. Highs 33 to 43. South winds 10 to 15 mph in the afternoon. Chance of snow 50 percent. .TUESDAY NIGHT...Snow showers likely in the evening, then a chance of snow showers after midnight. Snow accumulation of 1 to 2 inches. Lows 23 to 33. Chance of snow 70 percent. .WEDNESDAY...Mostly cloudy with a chance of snow showers and thunderstorms. Highs 38 to 48. Chance of snow 50 percent. .WEDNESDAY NIGHT...Partly cloudy with a chance of rain showers, snow showers and slight chance of thunderstorms. Lows 19 to 29. Chance of precipitation 30 percent. .THURSDAY...Partly cloudy with a chance of thunderstorms and snow showers. Highs 43 to 53. Chance of snow 40 percent. .THURSDAY NIGHT...Mostly cloudy with a chance of snow showers, rain showers and slight chance of thunderstorms. Lows 22 to 32. Chance of precipitation 50 percent. .FRIDAY...Mostly cloudy with a chance of snow showers and thunderstorms. Highs 44 to 54. Chance of snow 40 percent. .FRIDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms and snow showers. Lows 24 to 34. Chance of snow 10 percent. .SATURDAY...Partly cloudy with a chance of thunderstorms and snow showers. Highs 49 to 59. Chance of snow 40 percent. .SATURDAY NIGHT...Partly cloudy. Lows 27 to 37. .SUNDAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs 55 to 65. .SUNDAY NIGHT...Partly cloudy. Lows 30 to 40. .MEMORIAL DAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 58 to 68. $$