| NWS Forecast for: Grand and Summit Counties Below 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 1249 AM MDT Sat Aug 15 2026 | |
| Rest Of Tonight: Mostly cloudy. Slight chance of showers after midnight. Lows 45 to 51. Chance of rain 20 percent. Saturday: Mostly cloudy. Slight chance of showers in the morning, then a chance of thunderstorms in the afternoon. Highs 68 to 74. Chance of rain 50 percent. Saturday Night: Mostly clear. Slight chance of thunderstorms in the evening. Lows 42 to 50. Chance of precipitation 20 percent. Sunday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 72 to 78. Sunday Night: Partly cloudy. Lows 36 to 46. Monday And Monday Night: Partly cloudy. Highs 74 to 80. Lows 39 to 49. Tuesday: Mostly cloudy. Highs 74 to 80. Tuesday Night: Mostly cloudy with a 20 percent chance of thunderstorms. Lows 38 to 48. Wednesday: Mostly cloudy with a 30 percent chance of thunderstorms. Highs 74 to 80. Wednesday Night: Partly cloudy with a 10 percent chance of thunderstorms. Lows 37 to 47. Thursday And Thursday Night: Mostly clear. Highs 76 to 82. Lows 39 to 49. Friday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 78 to 84. | |
| Zone Forecast: Grand and Summit Counties Below 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |