Zone Forecast Product
Issued by NWS Denver/Boulder, CO
Issued by NWS Denver/Boulder, CO
123 FPUS55 KBOU 201206 ZFPBOU Zone Forecast Product for Northeast Colorado National Weather Service Denver/Boulder CO 605 AM MDT Thu Aug 20 2026 COZ038>040-210300- 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 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs in the lower to mid 90s. .TONIGHT...Mostly clear. Lows 59 to 65. .FRIDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs in the mid to upper 90s. North winds 10 to 15 mph in the afternoon. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows 59 to 65. .SATURDAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 87 to 93. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 40 percent chance of thunderstorms. Lows 59 to 65. Highs near 90. .SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows in the lower to mid 60s. .MONDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs near 90. .MONDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 56 to 62. Chance of rain 30 percent. .TUESDAY AND TUESDAY NIGHT...Partly cloudy with a 40 percent chance of thunderstorms. Highs in the mid 80s to lower 90s. Lows 55 to 61. .WEDNESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 85 to 91. $$ COZ041-210300- Elbert/Central and East Douglas Counties Above 6000 Feet- Including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur 605 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs in the mid 80s to lower 90s. .TONIGHT...Mostly clear. Lows near 60. .FRIDAY...Mostly sunny. Highs 89 to 95. .FRIDAY NIGHT...Partly cloudy. Lows near 60. .SATURDAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs near 90. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows near 60. Chance of rain 70 percent. .SUNDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 85 to 91. .SUNDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows near 60. .MONDAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 84 to 90. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows in the mid to upper 50s. .TUESDAY AND TUESDAY NIGHT...Partly cloudy with a 40 percent chance of thunderstorms. Highs in the mid to upper 80s. Lows in the mid to upper 50s. .WEDNESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 82 to 88. $$ COZ042>045-210300- 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 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs in the lower to mid 90s. .TONIGHT...Mostly clear. Lows near 60. .FRIDAY...Mostly sunny. Highs in the mid to upper 90s. .FRIDAY NIGHT...Partly cloudy. Lows near 60. .SATURDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs near 90. East winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows in the lower to mid 60s. Chance of rain 60 percent. .SUNDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower to mid 90s. .SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows in the lower to mid 60s. .MONDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the lower to mid 90s. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows near 60. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs near 90. .TUESDAY NIGHT...Partly cloudy with a 40 percent chance of thunderstorms. Lows in the mid 50s to lower 60s. .WEDNESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs near 90. $$ COZ046-047-210300- North and Northeast Elbert County Below 6000 Feet/North Lincoln County- Southeast Elbert County Below 6000 Feet/South Lincoln County- Including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch, and Punkin Center 605 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs in the lower 90s. .TONIGHT...Mostly clear. Lows near 60. .FRIDAY...Mostly sunny. Highs in the mid to upper 90s. South winds 10 to 15 mph with gusts up to 20 mph in the afternoon. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows near 60. .SATURDAY...Mostly sunny. Highs near 90. East winds 10 to 15 mph with gusts up to 25 mph. .SATURDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows near 60. .SUNDAY...Partly cloudy with a 10 percent chance of thunderstorms. Highs near 90. .SUNDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows near 60. .MONDAY...Mostly sunny with a 10 percent chance of thunderstorms. Highs in the lower to mid 90s. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows near 60. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs near 90. .TUESDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows in the mid 50s to lower 60s. .WEDNESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the upper 80s. $$ COZ048>051-210300- 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 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs in the lower 90s. .TONIGHT...Mostly clear. Lows in the lower 60s. .FRIDAY...Mostly sunny. Highs in the mid 90s. .FRIDAY NIGHT...Mostly clear. Lows in the lower 60s. .SATURDAY...Mostly sunny. Highs near 90. East winds 10 to 15 mph with gusts up to 30 mph. .SATURDAY NIGHT...Mostly cloudy with a 30 percent chance of thunderstorms. Lows in the lower 60s. .SUNDAY...Partly cloudy. Highs near 90. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of thunderstorms. Lows in the lower 60s. .MONDAY...Mostly sunny. Highs in the lower 90s. .MONDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows in the lower 60s. .TUESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the upper 80s. .TUESDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows around 60. .WEDNESDAY...Partly cloudy with a 20 percent chance of thunderstorms. Highs in the mid to upper 80s. $$ COZ035-210300- Larimer and Boulder Counties Between 6000 and 9000 Feet- Including Estes Park, Glendevey, Nederland, and Red Feather Lakes 605 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs 78 to 88. .TONIGHT...Mostly clear. Lows 52 to 62. .FRIDAY...Partly cloudy. Chance of thunderstorms in the afternoon. Highs 81 to 91. Chance of precipitation 50 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows 52 to 62. .SATURDAY...Showers likely and chance of thunderstorms. Highs 78 to 86. Chance of rain 70 percent. .SATURDAY NIGHT AND SUNDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 51 to 61. Highs 77 to 87. .SUNDAY NIGHT...Partly cloudy with a chance of showers and slight chance of thunderstorms. Lows 52 to 62. Chance of rain 30 percent. .MONDAY...Showers likely and chance of thunderstorms. Highs 75 to 85. Chance of rain 70 percent. .MONDAY NIGHT...Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 48 to 58. Chance of rain 40 percent. .TUESDAY...Showers likely and chance of thunderstorms. Highs 74 to 84. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a chance of showers and slight chance of thunderstorms. Lows 47 to 57. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 74 to 84. $$ COZ036-210300- 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 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Slight chance of thunderstorms in the afternoon. Highs 78 to 88. Chance of precipitation 20 percent. .TONIGHT...Partly cloudy. Lows 54 to 62. .FRIDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 81 to 91. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows 53 to 61. .SATURDAY...Showers likely and chance of thunderstorms. Highs 78 to 88. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows 53 to 61. Chance of rain 60 percent. .SUNDAY...Showers with thunderstorms likely. Highs 77 to 87. .SUNDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows 51 to 61. .MONDAY...Thunderstorms likely. Highs 76 to 86. Chance of precipitation 70 percent. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 49 to 59. .TUESDAY...Showers likely and chance of thunderstorms. Highs 75 to 85. Chance of rain 70 percent. .TUESDAY NIGHT...Partly cloudy with a 40 percent chance of thunderstorms. Lows 49 to 57. .WEDNESDAY...Showers likely and chance of thunderstorms. Highs 75 to 85. Chance of rain 60 percent. $$ COZ030-032-210300- Jackson County Below 9000 Feet- Grand and Summit Counties Below 9000 Feet- Including Gould, North Park, Rand, Spicer, Walden, Dillon, Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling 605 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs 79 to 85. Northwest winds 10 to 15 mph with gusts up to 20 mph in the afternoon. .TONIGHT...Mostly clear. Lows 43 to 51. .FRIDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 81 to 87. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy. Lows 44 to 52. .SATURDAY...Showers likely and chance of thunderstorms. Highs 79 to 85. Chance of rain 60 percent. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows 43 to 51. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a 30 percent chance of thunderstorms. Highs 75 to 81. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 40 to 50. .MONDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 74 to 80. .MONDAY NIGHT...Partly cloudy with a 30 percent chance of thunderstorms. Lows 39 to 49. .TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Highs 74 to 80. .TUESDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 38 to 48. .WEDNESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 74 to 80. $$ COZ037-210300- Central and Southeast Park County- Including Fairplay, Hartsel, Lake George, and South Park 605 AM MDT Thu Aug 20 2026 .TODAY...Partly cloudy. Slight chance of thunderstorms early in the afternoon. Chance of thunderstorms late in the afternoon. Highs 75 to 81. Chance of precipitation 30 percent. .TONIGHT...Mostly cloudy with a slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 46 to 52. Chance of precipitation 20 percent. .FRIDAY...Partly cloudy. Chance of thunderstorms in the afternoon. Highs 76 to 82. Chance of precipitation 30 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 47 to 53. .SATURDAY...Showers likely and chance of thunderstorms. Highs 75 to 83. Chance of rain 70 percent. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows near 50. Chance of rain 60 percent. .SUNDAY...Thunderstorms likely. Highs 72 to 80. Chance of precipitation 70 percent. .SUNDAY NIGHT...Mostly cloudy with a 40 percent chance of thunderstorms. Lows 45 to 51. .MONDAY...Thunderstorms likely. Highs 72 to 80. Chance of precipitation 70 percent. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 44 to 50. .TUESDAY...Thunderstorms likely. Highs 71 to 79. Chance of precipitation 60 percent. .TUESDAY NIGHT...Partly cloudy with a 40 percent chance of thunderstorms. Lows 44 to 50. .WEDNESDAY...Showers likely and chance of thunderstorms. Highs 71 to 79. Chance of rain 60 percent. $$ COZ031-033-210300- West Jackson and West Grand Counties Above 9000 Feet- South and East Jackson/Larimer/North and Northeast Grand/ Northwest Boulder Counties Above 9000 Feet- Including Mt Zirkel, Cameron Pass, Laramie and Medicine Bow Mountains, Rabbit Ears Range, Rocky Mountain National Park, and Willow Creek Pass 605 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Highs 69 to 79. Northwest winds 10 to 15 mph in the afternoon. .TONIGHT...Mostly clear. Lows 44 to 54. .FRIDAY...Partly cloudy. Slight chance of thunderstorms in the afternoon. Highs 71 to 81. Chance of precipitation 20 percent. .FRIDAY NIGHT...Partly cloudy with a 20 percent chance of showers. Lows 44 to 54. .SATURDAY...Showers likely and chance of thunderstorms. Highs 70 to 80. Chance of rain 60 percent. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows 43 to 53. Chance of rain 60 percent. .SUNDAY...Mostly cloudy with a 50 percent chance of thunderstorms. Highs 65 to 75. .SUNDAY NIGHT...Partly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 42 to 52. Chance of rain 30 percent. .MONDAY...Showers likely and chance of thunderstorms. Highs 65 to 75. Chance of rain 70 percent. .MONDAY NIGHT AND TUESDAY...Partly cloudy with a 40 percent chance of thunderstorms. Lows 41 to 51. Highs 64 to 74. .TUESDAY NIGHT...Partly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 40 to 50. Chance of rain 30 percent. .WEDNESDAY...Partly cloudy with a 30 percent chance of thunderstorms. Highs 64 to 74. $$ COZ034-210300- 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 AM MDT Thu Aug 20 2026 .TODAY...Mostly sunny. Slight chance of thunderstorms late in the afternoon. Highs 66 to 76. Northwest winds 10 to 15 mph in the afternoon. Chance of precipitation 20 percent. .TONIGHT...Partly cloudy. Lows 43 to 53. .FRIDAY...Partly cloudy. Chance of thunderstorms in the afternoon. Highs 68 to 78. Chance of precipitation 30 percent. .FRIDAY NIGHT...Partly cloudy. Lows 43 to 53. .SATURDAY...Showers and chance of thunderstorms. Highs 66 to 76. .SATURDAY NIGHT...Showers likely and chance of thunderstorms. Lows 42 to 52. Chance of rain 60 percent. .SUNDAY...Thunderstorms likely. Highs 63 to 73. Chance of precipitation 60 percent. .SUNDAY NIGHT...Partly cloudy with a 20 percent chance of thunderstorms. Lows 41 to 51. .MONDAY...Thunderstorms likely. Highs 63 to 73. Chance of precipitation 70 percent. .MONDAY NIGHT...Mostly cloudy with a 50 percent chance of thunderstorms. Lows 40 to 50. .TUESDAY...Rain showers likely and chance of thunderstorms. Highs 63 to 73. Chance of rain 60 percent. .TUESDAY NIGHT...Partly cloudy with a 30 percent chance of thunderstorms. Lows 39 to 49. .WEDNESDAY...Partly cloudy with a 50 percent chance of thunderstorms. Highs 62 to 72. $$