Green Mountain Park Weather Forecast
- 47
- 69
Mostly Sunny
- 53
- 79
Partly Sunny
- 53
- 79
Slight Chance Thunderstorms
- 52
- 79
Slight Chance Thunderstorms
- 46
- 77
Slight Chance Thunderstorms
- 48
- 75
Mostly Sunny
Today 18 Sep Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
Mostly sunny. Highs 58 to 68.
Tonight 18 Sep Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear Creek/Northeast Park Counties Below
Mostly clear. Lows 39 to 49.
Green Mountain Park Temperature Statistics
September Temperature
Broomfield / Jeffco (14.3 miles)
Lowest 6 September, 2025
48.2 °FAverage September
66.2 °FHighest 10 September, 2025
91.4 °F
Climate (2020–Present)
Broomfield / Jeffco (14.3 miles)
Average Low 2020–2025
41.2 °FAverage 2020–2025
50.6 °FAverage High 2020–2025
64.9 °F