| NWS Forecast for: Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County Issued by: National Weather Service Denver-Boulder, CO Last Update: 1248 AM MDT Sat Sep 19 2026 | |
| Rest Of Tonight: Partly cloudy. Lows in the lower to mid 50s. Saturday: Partly cloudy with a slight chance of showers in the morning, then showers likely and chance of thunderstorms in the afternoon. Some thunderstorms may produce heavy rainfall in the afternoon. Highs 72 to 78. Chance of rain 60 percent. Saturday Night: Partly cloudy. Chance of thunderstorms in the evening, then a chance of showers after midnight. Some thunderstorms may produce heavy rainfall in the evening. Lows 46 to 52. Chance of rain 40 percent. Sunday: Mostly cloudy with a 40 percent chance of thunderstorms. Highs 66 to 72. Sunday Night: Partly cloudy with a chance of showers and slight chance of thunderstorms. Lows 43 to 51. Chance of rain 30 percent. Monday: Mostly sunny. Highs 68 to 74. Monday Night: Partly cloudy with a 30 percent chance of showers. Lows 46 to 52. Tuesday: Partly cloudy. Highs 71 to 77. Tuesday Night: Partly cloudy with a 20 percent chance of thunderstorms. Lows 48 to 54. Wednesday And Wednesday Night: Partly cloudy with a 10 percent chance of thunderstorms. Highs in the mid to upper 70s. Lows 48 to 54. Thursday Through Friday: Partly cloudy. Highs in the mid 70s to lower 80s. Lows 50 to 56. | |
| Zone Forecast: Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County | |
Visit your local NWS office at: https://www.weather.gov/bou |