FPUS55 KBOU 200005 ZFPBOU Zone Forecast Product for Northeast Colorado National Weather Service Denver/Boulder CO 605 PM MDT Tue May 19 2026 COZ038>040-201200- Larimer County Below 6000 Feet/Northwest Weld County- 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 Fort Collins, Hereford, Loveland, Nunn, Arvada, Boulder, Golden, Lakewood, Longmont, Aurora, Brighton, City of Denver, Denver International Airport, Highlands Ranch, Littleton, and Parker 605 PM MDT Tue May 19 2026 .TONIGHT...Showers likely in the evening, then a chance of showers after midnight. Lows near 40. Chance of rain 70 percent. .WEDNESDAY...Mostly cloudy. Slight chance of showers in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 50s to lower 60s. Chance of rain 40 percent. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows near 40. Chance of precipitation 20 percent. .THURSDAY...Showers likely and chance of thunderstorms. Highs in the 60s. Chance of rain 70 percent. .THURSDAY NIGHT...Showers likely and chance of thunderstorms. Lows 38 to 44. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs in the lower to mid 60s. .FRIDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 38 to 44. .SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs near 70. .SATURDAY NIGHT AND SUNDAY...Mostly clear. Lows 42 to 48. Highs near 80. .SUNDAY NIGHT...Partly cloudy. Lows 46 to 52. .MEMORIAL DAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs in the lower to mid 80s. .MONDAY NIGHT...Partly cloudy. Lows 49 to 55. .TUESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs near 80. $$ COZ041-201200- Elbert/Central and East Douglas Counties Above 6000 Feet- Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 605 PM MDT Tue May 19 2026 .TONIGHT...Rain showers. Lows in the mid to upper 30s. Southeast winds 10 to 15 mph with gusts up to 20 mph after midnight. .WEDNESDAY...Chance of rain showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs in the lower to mid 50s. South winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Showers likely and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the upper 30s. Chance of rain 70 percent. .THURSDAY...Showers likely and chance of thunderstorms. Highs in the lower to mid 60s. Chance of rain 70 percent. .THURSDAY NIGHT...Showers likely and chance of thunderstorms. Lows near 40. Chance of rain 70 percent. .FRIDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs near 60. .FRIDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows near 40. .SATURDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the mid to upper 60s. .SATURDAY NIGHT...Mostly clear. Lows in the lower to mid 40s. .SUNDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 72 to 78. .SUNDAY NIGHT...Partly cloudy. Lows 44 to 50. .MEMORIAL DAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 75 to 81. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 46 to 52. .TUESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 74 to 80. $$ COZ042>045-201200- 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 605 PM MDT Tue May 19 2026 .TONIGHT...Cloudy with a 50 percent chance of showers. Lows around 40. .WEDNESDAY...Mostly cloudy. Chance of showers in the morning, then a chance of thunderstorms in the afternoon. Highs near 60. Southeast winds 10 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. .WEDNESDAY NIGHT...Mostly cloudy with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows around 40. Southeast winds 10 to 15 mph with gusts up to 20 mph in the evening, becoming light. Chance of precipitation 20 percent. .THURSDAY...Showers likely and chance of thunderstorms. Highs in the mid to upper 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. .THURSDAY NIGHT...Showers and chance of thunderstorms. Lows near 40. Northeast winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY...Mostly cloudy with a 20 percent chance of thunderstorms. Highs in the lower to mid 60s. .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 AND SUNDAY...Mostly clear. Lows in the lower to mid 40s. Highs near 80. .SUNDAY NIGHT...Partly cloudy. Lows 44 to 50. .MEMORIAL DAY...Mostly sunny. Highs in the 80s. .MONDAY NIGHT...Partly cloudy. Lows 47 to 53. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower to mid 80s. $$ COZ046-047-201200- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center 605 PM MDT Tue May 19 2026 .TONIGHT...Chance of showers early in the evening, then showers likely overnight. Lows in the mid 30s to lower 40s. Southeast winds 10 to 15 mph with gusts up to 20 mph. Chance of rain 70 percent. .WEDNESDAY...Cloudy with a chance of showers. Slight chance of thunderstorms in the afternoon. Highs in the mid to upper 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 50 percent. .WEDNESDAY NIGHT...Showers likely and slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows near 40. Southeast winds 10 to 15 mph with gusts up to 25 mph in the evening, becoming light. Chance of rain 70 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the lower to mid 60s. South winds 10 to 15 mph with gusts up to 25 mph. .THURSDAY NIGHT...Showers and chance of thunderstorms. Lows near 40. East winds 10 to 15 mph with gusts up to 25 mph. .FRIDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 60 to 66. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the mid 30s to lower 40s. Chance of rain 40 percent. .SATURDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs near 70. .SATURDAY NIGHT...Mostly clear with a 20 percent chance of thunderstorms. Lows 39 to 45. .SUNDAY...Mostly sunny. Highs in the upper 70s. .SUNDAY NIGHT...Partly cloudy. Lows 42 to 48. .MEMORIAL DAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs in the lower 80s. .MONDAY NIGHT...Partly cloudy. Lows 44 to 50. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs near 80. $$ COZ048>051-201200- 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 605 PM MDT Tue May 19 2026 .TONIGHT...Cloudy. Slight chance of showers in the evening, then a chance of showers after midnight. Lows around 40. South winds 10 to 15 mph after midnight. Chance of rain 50 percent. .WEDNESDAY...Showers likely in the morning, then a chance of showers and slight chance of thunderstorms in the afternoon. Highs in the mid to upper 50s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows around 40. Southeast winds 10 to 20 mph. Gusts up to 30 mph in the evening. Chance of rain 30 percent. .THURSDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs 59 to 65. Southeast winds 10 to 20 mph with gusts up to 30 mph. .THURSDAY NIGHT...Showers and chance of thunderstorms. Lows in the lower 40s. East winds 10 to 15 mph with gusts up to 30 mph. .FRIDAY...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Highs in the mid 60s. Chance of rain 50 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the upper 30s. Chance of rain 30 percent. .SATURDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower to mid 70s. .SATURDAY NIGHT...Mostly clear with a 10 percent chance of thunderstorms. Lows in the mid 40s. .SUNDAY THROUGH MEMORIAL DAY...Mostly clear. Highs 80 to 88. Lows in the upper 40s. .MONDAY NIGHT...Partly cloudy. Lows around 50. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Windy. Highs in the lower to mid 80s. $$ COZ035-201200- Larimer and Boulder Counties Between 6000 and 9000 Feet- Including Estes Park, Glendevey, Nederland, and Red Feather Lakes 605 PM MDT Tue May 19 2026 .TONIGHT...Snow showers likely and chance of rain showers. Snow accumulation up to 1 inch. Lows 26 to 36. Chance of precipitation 70 percent. .WEDNESDAY...Mostly cloudy. Chance of rain and snow showers in the morning, then a chance of thunderstorms in the afternoon. Highs 45 to 55. Chance of precipitation 50 percent. .WEDNESDAY NIGHT...Partly cloudy. Slight chance of thunderstorms in the evening. Lows 27 to 37. Chance of precipitation 10 percent. .THURSDAY...Rain showers likely and chance of thunderstorms. Highs 51 to 61. Chance of rain 70 percent. .THURSDAY NIGHT...Rain showers, snow showers and chance of thunderstorms. Lows 30 to 40. .FRIDAY...Mostly cloudy with a chance of thunderstorms and snow showers. Highs 50 to 60. Chance of snow 40 percent. .FRIDAY NIGHT...Partly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 30 to 40. Chance of rain 30 percent. .SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 58 to 68. .SATURDAY NIGHT...Mostly clear. Lows 35 to 45. .SUNDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 66 to 76. .SUNDAY NIGHT...Partly cloudy. Lows 40 to 50. .MEMORIAL DAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 69 to 79. .MONDAY NIGHT...Partly cloudy. Lows 43 to 53. .TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 68 to 78. $$ COZ036-201200- 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 605 PM MDT Tue May 19 2026 .TONIGHT...Rain and snow showers. Snow accumulation up to 1 inch. Lows 31 to 37. .WEDNESDAY...Chance of rain and snow showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. No snow accumulation. Highs 45 to 55. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 30 to 40. Chance of rain 50 percent. .THURSDAY...Rain showers likely and chance of thunderstorms. Warmer. Highs 55 to 65. Chance of rain 70 percent. .THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 32 to 42. .FRIDAY...Rain showers likely, chance of thunderstorms and slight chance of snow showers. Highs 51 to 61. Chance of precipitation 60 percent. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 34 to 42. .SATURDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs 60 to 68. .SATURDAY NIGHT...Partly cloudy. Lows 36 to 46. .SUNDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 66 to 76. .SUNDAY NIGHT...Partly cloudy. Lows 40 to 50. .MEMORIAL DAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 70 to 80. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 42 to 52. .TUESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 69 to 79. $$ COZ030-032-201200- Jackson County Below 9000 Feet- Grand and Summit Counties Below 9000 Feet- Including Gould, North Park, Rand, Spicer, Walden, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 605 PM MDT Tue May 19 2026 .TONIGHT...Slight chance of rain showers early in the evening. Mostly cloudy with a slight chance of snow showers. Lows 25 to 31. Chance of precipitation 10 percent. .WEDNESDAY...Partly cloudy. Slight chance of rain and snow showers in the morning, then a chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 56. West winds 10 to 15 mph with gusts up to 20 mph in the afternoon. Chance of precipitation 30 percent. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 20s to lower 30s. .THURSDAY...Mostly cloudy with a chance of thunderstorms and snow showers. Highs 52 to 60. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 50 percent. .THURSDAY NIGHT...Rain showers, snow showers likely and slight chance of thunderstorms. Lows 26 to 32. Chance of precipitation 70 percent. .FRIDAY...Mostly cloudy with a chance of thunderstorms and snow showers. Highs 51 to 59. Chance of snow 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of rain showers. Lows 26 to 32. .SATURDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 58 to 64. .SATURDAY NIGHT THROUGH SUNDAY NIGHT...Mostly clear. Lows 29 to 38. Highs 66 to 72. .MEMORIAL DAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs 69 to 75. .MONDAY NIGHT...Partly cloudy. Lows 35 to 41. .TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 67 to 73. $$ COZ037-201200- Central and Southeast Park County- Including Fairplay, Hartsel, Lake George, and South Park 605 PM MDT Tue May 19 2026 .TONIGHT...Rain showers, snow showers likely and slight chance of thunderstorms in the evening, then rain and snow showers after midnight. Snow accumulation up to 1 inch. Lows in the lower to mid 30s. Southeast winds 10 to 15 mph with gusts up to 20 mph in the evening, becoming light. .WEDNESDAY...Snow showers likely and chance of rain showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Little or no snow accumulation. Highs 46 to 52. Chance of precipitation 70 percent. .WEDNESDAY NIGHT...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then a slight chance of rain showers after midnight. Lows 29 to 35. Chance of precipitation 40 percent. .THURSDAY...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Highs 53 to 61. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of rain 40 percent. .THURSDAY NIGHT...Partly cloudy with a slight chance of thunderstorms and snow showers. Lows 29 to 35. Chance of snow 20 percent. .FRIDAY...Partly cloudy with a chance of thunderstorms and slight chance of snow showers. Highs 55 to 61. Chance of snow 30 percent. .FRIDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 31 to 37. .SATURDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 58 to 64. .SATURDAY NIGHT...Partly cloudy. Lows 32 to 38. .SUNDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 63 to 69. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 35 to 41. .MEMORIAL DAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 66 to 72. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 37 to 43. .TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 63 to 69. $$ COZ031-033-201200- West Jackson and West Grand Counties Above 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Including Mt Zirkel, Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, and Willow Creek Pass 605 PM MDT Tue May 19 2026 .TONIGHT...Mostly cloudy. Chance of snow showers early in the evening, then a slight chance of snow showers overnight. Lows 21 to 29. Chance of snow 30 percent. .WEDNESDAY...Partly cloudy with a slight chance of snow showers in the morning, then mostly cloudy with a chance of thunderstorms and snow showers in the afternoon. Highs 39 to 49. Chance of snow 40 percent. .WEDNESDAY NIGHT...Mostly clear. Lows 21 to 29. .THURSDAY...Snow showers, rain showers likely and chance of thunderstorms. Highs 42 to 52. Chance of precipitation 60 percent. .THURSDAY NIGHT...Snow showers with rain showers likely and slight chance of thunderstorms. Lows 24 to 32. .FRIDAY...Mostly cloudy with a chance of snow showers and thunderstorms. Highs 41 to 51. Chance of snow 40 percent. .FRIDAY NIGHT...Partly cloudy with a 30 percent chance of snow showers. Lows 24 to 32. .SATURDAY...Partly cloudy with a chance of thunderstorms and slight chance of snow showers. Highs 48 to 58. Chance of snow 30 percent. .SATURDAY NIGHT...Mostly clear. Lows 28 to 36. .SUNDAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs 56 to 66. .SUNDAY NIGHT...Mostly clear. Lows 31 to 41. .MEMORIAL DAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 60 to 70. .MONDAY NIGHT...Partly cloudy. Lows 34 to 44. .TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 58 to 68. $$ COZ034-201200- 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 605 PM MDT Tue May 19 2026 .TONIGHT...Rain and snow showers likely in the evening, then snow showers after midnight. New snow accumulation of 1 to 3 inches. Lows 24 to 32. .WEDNESDAY...Mostly cloudy with a chance of snow showers. Chance of thunderstorms in the afternoon. Highs 38 to 48. Chance of snow 50 percent. .WEDNESDAY NIGHT...Partly cloudy. Chance of rain showers, slight chance of thunderstorms and snow showers in the evening. Lows 20 to 30. Chance of precipitation 30 percent. .THURSDAY...Mostly cloudy with a chance of thunderstorms and snow showers. Highs 43 to 53. West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow 40 percent. .THURSDAY NIGHT...Snow showers, rain showers likely and slight chance of thunderstorms. Lows 22 to 32. Chance of precipitation 70 percent. .FRIDAY...Mostly cloudy with a chance of snow showers and thunderstorms. Highs 42 to 52. Chance of snow 30 percent. .FRIDAY NIGHT...Mostly cloudy with a chance of rain showers, slight chance of thunderstorms and snow showers. Lows 24 to 34. Chance of precipitation 30 percent. .SATURDAY...Partly cloudy with a chance of thunderstorms and snow showers. Highs 48 to 58. Chance of snow 40 percent. .SATURDAY NIGHT...Mostly clear. Lows 26 to 36. .SUNDAY...Mostly sunny with a 20 percent chance of thunderstorms. Highs 55 to 65. .SUNDAY NIGHT...Partly cloudy. Lows 30 to 40. .MEMORIAL DAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 58 to 68. .MONDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 33 to 43. .TUESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 56 to 66. $$