Boulder Weather Forecast
- 51
- 80
Sunny
- 53
- 83
Sunny
- 53
- 84
Sunny
- 53
- 84
Mostly Sunny
- 53
- 83
Mostly Sunny
- 51
- 81
Slight Chance Thunderstorms
Today 25 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
Sunny. Highs around 80.
Tonight 25 Sep Boulder And Jefferson Counties Below 6000 Feet/West Broomfield County
Clear. Lows around 50.
Boulder Temperature Statistics
September Temperature
Boulder Municipal Airport (2.5 miles)
Lowest 16 September, 2023
44.6 °FAverage September
66.9 °FHighest 1 September, 2023
95 °F
Climate (2010–Present)
Boulder Municipal Airport (2.5 miles)
Average Low 2010–Present
40.7 °FAverage 2010–Present
52.7 °FAverage High 2010–Present
65 °F