| NWS Forecast for: Grand and Summit Counties Below 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 605 AM MDT Sat Sep 5 2026 | |
| Today: Partly cloudy in the morning, then becoming mostly cloudy. Highs 76 to 82. Tonight: Mostly cloudy in the evening, then becoming partly cloudy. Lows 41 to 49. Sunday: Partly cloudy. Highs 77 to 83. Sunday Night: Mostly cloudy. Lows 44 to 50. Labor Day: Mostly cloudy with a 20 percent chance of thunderstorms. Highs 69 to 75. Southwest winds 10 to 20 mph with gusts up to 40 mph. Monday Night: Partly cloudy. Lows 37 to 47. Tuesday: Mostly sunny with a 10 percent chance of thunderstorms. Highs 70 to 76. Tuesday Night: Partly cloudy. Lows 38 to 48. Wednesday: Partly cloudy with a 10 percent chance of thunderstorms. Highs 73 to 79. Wednesday Night: Partly cloudy. Lows 40 to 48. Thursday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 72 to 78. Thursday Night: Partly cloudy with a 20 percent chance of showers. Lows 39 to 47. Friday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 71 to 77. | |
| Zone Forecast: Grand and Summit Counties Below 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |