| NWS Forecast for: Grand and Summit Counties Below 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 605 PM MDT Thu Sep 10 2026 | |
| Tonight: Mostly clear. Lows 37 to 43. Friday: Partly cloudy. Highs 72 to 78. West winds 10 to 20 mph with gusts up to 30 mph in the afternoon. Friday Night: Partly cloudy. Slight chance of showers after midnight. Lows 40 to 46. Chance of rain 10 percent. Saturday: Partly cloudy. Highs 72 to 78. Southwest winds 10 to 15 mph with gusts up to 25 mph. Saturday Night: Mostly clear. Lows 40 to 48. South winds 10 to 15 mph with gusts up to 20 mph. Sunday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 73 to 79. Sunday Night: Mostly cloudy with a chance of showers and slight chance of thunderstorms. Lows 40 to 48. Chance of rain 40 percent. Monday: Partly cloudy with a 30 percent chance of thunderstorms. Highs 68 to 74. Monday Night: Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 36 to 46. Chance of rain 50 percent. Tuesday: Mostly cloudy with a 50 percent chance of thunderstorms. Highs 67 to 73. Tuesday Night: Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 35 to 45. Chance of rain 40 percent. Wednesday: Mostly cloudy with a 40 percent chance of thunderstorms. Highs 66 to 72. Wednesday Night And Thursday: Partly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 35 to 43. Highs 68 to 74. Chance of rain 30 percent. | |
| Zone Forecast: Grand and Summit Counties Below 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |