| NWS Forecast for: South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet Issued by: National Weather Service Denver-Boulder, CO Last Update: 605 AM MDT Tue Sep 15 2026 | |
| Today: Mostly cloudy. Chance of rain showers in the morning, then a chance of thunderstorms in the afternoon. Highs 56 to 66. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 40 percent. Tonight: Slight chance of thunderstorms in the evening. Mostly cloudy with a chance of rain showers. Lows 38 to 48. Chance of rain 40 percent. Wednesday: Mostly cloudy. Slight chance of rain showers in the morning, then a chance of thunderstorms in the afternoon. Highs 56 to 66. Chance of rain 50 percent. Wednesday Night: Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 38 to 48. Chance of rain 30 percent. Thursday: Rain showers likely and chance of thunderstorms. Highs 55 to 65. Chance of rain 70 percent. Thursday Night: Mostly cloudy with a chance of rain showers and slight chance of thunderstorms. Lows 36 to 46. Chance of rain 50 percent. Friday: Mostly cloudy with a 50 percent chance of thunderstorms. Highs 54 to 64. Friday Night: Partly cloudy with a 20 percent chance of thunderstorms. Lows 32 to 42. Saturday: Partly cloudy with a 30 percent chance of thunderstorms. Highs 52 to 62. Saturday Night: Partly cloudy with a 10 percent chance of rain showers. Lows 30 to 40. Sunday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 53 to 63. Sunday Night: Partly cloudy. Lows 30 to 40. Monday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 54 to 64. | |
| Zone Forecast: South and East Jackson/Larimer/North and Northeast Grand/Northwest Boulder Counties Above 9000 Feet | |
Visit your local NWS office at: https://www.weather.gov/bou |