FPUS55 KBOU 230005 ZFPBOU Zone Forecast Product for Northeast Colorado National Weather Service Denver/Boulder CO 605 PM MDT Fri May 22 2026 COZ038>040-231200- 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 Fri May 22 2026 .TONIGHT...Mostly cloudy. Chance of showers and slight chance of thunderstorms in the evening. Slight chance of showers after midnight. Lows 40 to 46. Chance of rain 30 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs near 70. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows 43 to 49. .SUNDAY...Mostly sunny. Highs in the lower to mid 80s. .SUNDAY NIGHT...Partly cloudy. Lows 48 to 54. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower to mid 80s. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows in the lower to mid 50s. .TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 77 to 83. .TUESDAY NIGHT...Showers likely and chance of thunderstorms. Lows in the lower to mid 50s. Chance of rain 60 percent. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the 70s. .WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Lows near 50. Highs 75 to 81. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows in the lower to mid 50s. Chance of rain 40 percent. .FRIDAY...Mostly cloudy with a 40 percent chance of showers. Highs 75 to 81. $$ COZ041-231200- Elbert/Central and East Douglas Counties Above 6000 Feet- Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 605 PM MDT Fri May 22 2026 .TONIGHT...Showers likely and slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows near 40. South winds 10 to 15 mph with gusts up to 20 mph after midnight. Chance of rain 70 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 64 to 70. Southwest winds 10 to 15 mph with gusts up to 20 mph in the morning, becoming light. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower to mid 40s. Southwest winds 10 to 15 mph with gusts up to 20 mph after midnight. .SUNDAY...Mostly sunny. Highs 74 to 80. .SUNDAY NIGHT...Partly cloudy. Lows 46 to 52. .MEMORIAL DAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 76 to 82. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 47 to 53. .TUESDAY AND TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Windy. Highs 71 to 77. Lows 45 to 51. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 68 to 74. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 45 to 51. Chance of rain 30 percent. .THURSDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs 71 to 77. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows near 50. Chance of rain 30 percent. .FRIDAY...Mostly cloudy with a 30 percent chance of showers. Highs 71 to 77. $$ COZ042>045-231200- 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 Fri May 22 2026 .TONIGHT...Mostly cloudy. Chance of showers in the late evening and early morning. Lows in the lower to mid 40s. Chance of rain 40 percent. .SATURDAY...Mostly sunny. Slight chance of thunderstorms in the afternoon. Highs in the lower to mid 70s. Chance of precipitation 10 percent. .SATURDAY NIGHT...Mostly clear. Lows in the 40s. .SUNDAY...Mostly sunny. Highs in the lower to mid 80s. .SUNDAY NIGHT...Partly cloudy. Lows 46 to 52. .MEMORIAL DAY...Mostly sunny. Highs in the mid to upper 80s. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows near 50. .TUESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Very windy. Highs in the lower to mid 80s. .TUESDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows near 50. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the mid 70s to lower 80s. .WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows near 50. .THURSDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs near 80. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows near 50. Chance of rain 40 percent. .FRIDAY...Mostly cloudy with a 30 percent chance of showers. Highs near 80. $$ COZ046-047-231200- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center 605 PM MDT Fri May 22 2026 .TONIGHT...Mostly cloudy. Slight chance of thunderstorms in the evening. Chance of showers through the night. Lows near 40. Chance of rain 40 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs near 70. South winds 10 to 15 mph with gusts up to 20 mph. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the lower to mid 40s. .SUNDAY...Mostly sunny. Highs near 80. .SUNDAY NIGHT...Partly cloudy. Lows 45 to 51. .MEMORIAL DAY...Mostly sunny. Highs in the lower to mid 80s. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 46 to 52. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Very windy. Highs near 80. .TUESDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 44 to 50. .WEDNESDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the 70s. .WEDNESDAY NIGHT AND THURSDAY...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 43 to 49. Highs in the mid 70s to lower 80s. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 45 to 51. .FRIDAY...Partly cloudy with a 30 percent chance of showers. Highs near 80. $$ COZ048>051-231200- 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 Fri May 22 2026 .TONIGHT...Mostly cloudy. Chance of showers in the late evening and early morning. Slight chance of showers towards sunrise. Lows in the lower 40s. Chance of rain 40 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs in the lower to mid 70s. South winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent. .SATURDAY NIGHT...Mostly clear. Lows in the mid 40s. South winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY...Mostly sunny. Highs in the 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Mostly clear. Lows around 50. South winds 10 to 15 mph with gusts up to 25 mph. .MEMORIAL DAY...Mostly sunny. Highs in the mid to upper 80s. .MONDAY NIGHT AND TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Very windy. Lows in the lower 50s. Highs in the lower to mid 80s. .TUESDAY NIGHT...Mostly cloudy. Lows in the lower 50s. .WEDNESDAY AND WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Highs in the mid to upper 70s. Lows in the upper 40s. .THURSDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs near 80. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows around 50. Chance of rain 30 percent. .FRIDAY...Mostly cloudy with a 30 percent chance of showers. Highs in the upper 70s. $$ COZ035-231200- Larimer and Boulder Counties Between 6000 and 9000 Feet- Including Estes Park, Glendevey, Nederland, and Red Feather Lakes 605 PM MDT Fri May 22 2026 .TONIGHT...Mostly cloudy with a chance of rain showers in the evening, then partly cloudy after midnight. Lows 31 to 41. Chance of rain 40 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 57 to 67. West winds 10 to 15 mph with gusts up to 20 mph in the afternoon. Chance of precipitation 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows 36 to 46. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Warmer. Highs 68 to 78. .SUNDAY NIGHT...Partly cloudy. Lows 41 to 51. .MEMORIAL DAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 69 to 79. .MONDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 43 to 53. .TUESDAY AND TUESDAY NIGHT...Showers and chance of thunderstorms. Highs 64 to 74. Lows 41 to 51. .WEDNESDAY...Showers likely and chance of thunderstorms. Highs 61 to 71. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 42 to 52. Chance of rain 50 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 63 to 73. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 42 to 52. Chance of rain 40 percent. .FRIDAY...Mostly cloudy with a 50 percent chance of showers. Highs 63 to 73. $$ COZ036-231200- 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 Fri May 22 2026 .TONIGHT...Rain showers likely and chance of thunderstorms in the evening, then a slight chance of rain showers after midnight. Lows 34 to 44. Chance of rain 60 percent. .SATURDAY...Partly cloudy in the morning, then mostly cloudy with a slight chance of thunderstorms in the afternoon. Highs 58 to 68. Chance of precipitation 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows 36 to 46. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Warmer. Highs 69 to 79. .SUNDAY NIGHT...Partly cloudy with a 10 percent chance of thunderstorms. Lows 41 to 51. .MEMORIAL DAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 70 to 80. .MONDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows 42 to 52. .TUESDAY...Showers likely and chance of thunderstorms. Highs 63 to 73. Chance of rain 70 percent. .TUESDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows 41 to 51. .WEDNESDAY...Showers likely and chance of thunderstorms. Highs 61 to 71. Chance of rain 70 percent. .WEDNESDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 41 to 51. Chance of rain 40 percent. .THURSDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 64 to 74. .THURSDAY NIGHT...Partly cloudy with a chance of showers and slight chance of thunderstorms. Lows 41 to 51. Chance of rain 30 percent. .FRIDAY...Mostly cloudy with a 40 percent chance of showers. Highs 65 to 75. $$ COZ030-032-231200- Jackson County Below 9000 Feet- Grand and Summit Counties Below 9000 Feet- Including Gould, North Park, Rand, Spicer, Walden, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 605 PM MDT Fri May 22 2026 .TONIGHT...Mostly cloudy with a slight chance of rain showers early in the evening, then mostly cloudy overnight. Lows 27 to 33. Chance of rain 10 percent. .SATURDAY...Partly cloudy. Highs 57 to 63. West winds 10 to 15 mph in the afternoon. .SATURDAY NIGHT...Partly cloudy. Lows 29 to 35. Southwest winds 10 to 15 mph with gusts up to 25 mph in the evening, becoming light. .SUNDAY...Partly cloudy. Highs 67 to 73. West winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Partly cloudy. Lows 33 to 39. .MEMORIAL DAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 70 to 76. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 35 to 41. Chance of rain 30 percent. .TUESDAY...Showers and chance of thunderstorms. Highs 63 to 69. .TUESDAY NIGHT...Rain showers likely and slight chance of thunderstorms. Lows 34 to 40. Chance of rain 60 percent. .WEDNESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 63 to 69. .WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows 35 to 41. .THURSDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 67 to 73. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 30 percent chance of rain showers. Lows 35 to 41. Highs 65 to 71. $$ COZ037-231200- Central and Southeast Park County- Including Fairplay, Hartsel, Lake George, and South Park 605 PM MDT Fri May 22 2026 .TONIGHT...Mostly cloudy. Chance of rain showers, snow showers and slight chance of thunderstorms in the evening, then a slight chance of rain and snow showers after midnight. Lows 32 to 38. Chance of precipitation 50 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 56 to 64. West winds 10 to 15 mph with gusts up to 25 mph in the afternoon. Chance of precipitation 10 percent. .SATURDAY NIGHT...Mostly clear. Lows 32 to 38. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 63 to 71. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 37 to 43. .MEMORIAL DAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 65 to 73. .MONDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 38 to 44. Chance of rain 30 percent. .TUESDAY...Showers likely and chance of thunderstorms. Highs 58 to 64. Chance of rain 70 percent. .TUESDAY NIGHT AND WEDNESDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Lows near 40. Highs 59 to 65. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers and slight chance of thunderstorms. Lows 37 to 43. Chance of rain 30 percent. .THURSDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 63 to 69. .THURSDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 37 to 43. .FRIDAY...Partly cloudy with a 30 percent chance of showers. Highs 63 to 69. $$ COZ031-033-231200- West Jackson and West Grand Counties Above 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Including Mt Zirkel, Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, and Willow Creek Pass 605 PM MDT Fri May 22 2026 .TONIGHT...Mostly cloudy with a slight chance of snow showers in the evening, then partly cloudy after midnight. Lows 24 to 32. Chance of snow 20 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms and snow showers in the afternoon. Highs 46 to 56. West winds 10 to 15 mph in the afternoon. Chance of snow 20 percent. .SATURDAY NIGHT...Partly cloudy. Lows 28 to 36. West winds 10 to 15 mph with gusts up to 25 mph in the evening, becoming light. .SUNDAY...Partly cloudy. Highs 55 to 65. West winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Partly cloudy. Lows 32 to 42. .MEMORIAL DAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 59 to 69. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 35 to 43. Chance of rain 30 percent. .TUESDAY...Rain showers and chance of thunderstorms. Highs 55 to 65. .TUESDAY NIGHT...Rain showers and slight chance of thunderstorms. Lows 34 to 42. .WEDNESDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs 53 to 63. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 35 to 43. Chance of rain 30 percent. .THURSDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 57 to 67. .THURSDAY NIGHT AND FRIDAY...Partly cloudy with a 30 percent chance of rain showers. Lows 35 to 43. Highs 55 to 65. $$ COZ034-231200- 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 Fri May 22 2026 .TONIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Chance of snow showers, rain showers and slight chance of thunderstorms in the evening. Slight chance of snow showers after midnight. Lows 24 to 34. Chance of precipitation 40 percent. .SATURDAY...Partly cloudy. Slight chance of thunderstorms and snow showers in the afternoon. Highs 46 to 56. West winds 10 to 15 mph in the afternoon. Chance of snow 10 percent. .SATURDAY NIGHT...Mostly clear. Lows 27 to 37. West winds 10 to 15 mph with gusts up to 30 mph in the evening, becoming light. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs 55 to 65. West winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Partly cloudy with a 10 percent chance of thunderstorms. Lows 31 to 41. .MEMORIAL DAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 57 to 67. .MONDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 33 to 43. Chance of rain 30 percent. .TUESDAY...Rain showers and chance of thunderstorms. Highs 51 to 61. .TUESDAY NIGHT...Rain showers likely and chance of thunderstorms. Lows 32 to 40. Chance of rain 60 percent. .WEDNESDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 51 to 61. .WEDNESDAY NIGHT...Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 33 to 41. Chance of rain 30 percent. .THURSDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 55 to 65. .THURSDAY NIGHT...Partly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 34 to 42. Chance of rain 30 percent. .FRIDAY...Partly cloudy with a 30 percent chance of rain showers. Highs 54 to 64. $$