| NWS Forecast for: Grand and Summit Counties Below 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 605 PM MDT Thu Jun 18 2026 | |
Tonight: Mostly clear. Lows 38 to 44. Juneteenth: Partly cloudy. Highs 78 to 84. West winds 10 to 15 mph with gusts up to 25 mph in the afternoon. Friday Night: Partly cloudy. Lows 40 to 48. Northeast winds 10 to 15 mph in the evening, becoming light. Saturday: Partly cloudy. Highs 77 to 83. Southwest winds 10 to 20 mph with gusts up to 45 mph. Saturday Night: Mostly clear. Lows 38 to 46. Sunday: Mostly sunny. Highs 71 to 77. Sunday Night: Partly cloudy. Lows 36 to 44. Monday: Mostly sunny. Highs 73 to 79. Monday Night: Partly cloudy. Lows 37 to 45. Tuesday: Mostly sunny. Highs 77 to 83. Tuesday Night: Partly cloudy. Lows 38 to 46. Wednesday: Mostly sunny. Highs 78 to 84. Wednesday Night: Partly cloudy. Lows 39 to 47. Thursday: Mostly sunny. Highs 77 to 83. | |
| Zone Forecast: Grand and Summit Counties Below 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |