| NWS Forecast for: Grand and Summit Counties Below 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 407 AM MDT Mon Sep 1 2025 |  |
Today: Mostly sunny. Highs 69 to 77. Tonight: Mostly clear. Lows 35 to 43. Tuesday: Mostly sunny. Highs 70 to 78. Tuesday Night: Mostly clear. Lows 36 to 44. Wednesday: Partly cloudy. Highs 68 to 76. Wednesday Night And Thursday: Mostly clear. Lows 34 to 44. Highs 69 to 77. Thursday Night: Partly cloudy. Lows 36 to 44. Friday: Partly cloudy with a 30 percent chance of thunderstorms. Highs 67 to 75. Friday Night: Partly cloudy. Lows 36 to 44. Saturday: Partly cloudy with a 40 percent chance of thunderstorms. Highs 68 to 74. Saturday Night: Mostly cloudy with a 20 percent chance of thunderstorms. Lows 37 to 45. Sunday: Mostly cloudy with a 40 percent chance of thunderstorms. Highs 65 to 71. | |
| Zone Forecast: Grand and Summit Counties Below 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |