| NWS Forecast for: Grand and Summit Counties Below 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 605 AM MDT Fri Sep 4 2026 | |
| Today: Mostly sunny. Slight chance of thunderstorms late in the afternoon. Highs 74 to 80. Southwest winds 10 to 15 mph in the afternoon. Chance of precipitation 10 percent. Tonight: Partly cloudy. Lows 41 to 49. Saturday: Partly cloudy in the morning, then becoming mostly cloudy. Highs 74 to 80. Saturday Night: Partly cloudy. Lows 41 to 49. Sunday: Partly cloudy. Highs 74 to 80. Sunday Night: Mostly cloudy with a 20 percent chance of showers. Lows 42 to 50. Labor Day: Mostly cloudy with a 40 percent chance of thunderstorms. Highs 69 to 75. Monday Night: Mostly cloudy. Lows 38 to 48. Tuesday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 70 to 76. Tuesday Night: Partly cloudy. Lows 38 to 48. Wednesday: Partly cloudy with a 30 percent chance of thunderstorms. Highs 73 to 79. Wednesday Night: Partly cloudy with a 20 percent chance of showers. Lows 41 to 49. Thursday: Partly cloudy with a 40 percent chance of thunderstorms. Highs 72 to 78. | |
| Zone Forecast: Grand and Summit Counties Below 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |