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Denver's Monthly Weather Summary for September 2026

Current conditions at

Boulder Municipal Airport (KBDU)

Lat: 40.04°NLon: 105.23°WElev: 5288ft.

Rain

50°F

10°C

Humidity	100%
Wind Speed	E 6 mph
Barometer	30.13 in
Dewpoint	50°F (10°C)
Visibility	5.00 mi
Wind Chill	48°F (9°C)
Last update	14 Oct 12:15 am MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles W Boulder CO

Overnight
Low: 40 °F
Showers
Wednesday
High: 43 °F
Showers
Wednesday Night
Low: 35 °F
Rain
Thursday
High: 50 °F
Rain Likely
Thursday Night
Low: 34 °F
Slight Chance
Showers then
Mostly Clear
Friday
High: 61 °F
Sunny
Friday Night
Low: 38 °F
Mostly Clear
Saturday
High: 73 °F
Sunny
Saturday Night
Low: 46 °F
Mostly Clear

Detailed Forecast

Overnight

Showers. Low around 40. Light northeast wind. Chance of precipitation is 100%.

Wednesday

Showers. High near 43. Calm wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 100%.

Wednesday Night

Rain. Low around 35. Light north northeast wind. Chance of precipitation is 100%.

Thursday

Rain likely. Mostly cloudy, with a high near 50. Light north northwest wind becoming north 6 to 11 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

Thursday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 34. North northeast wind around 5 mph becoming calm in the evening.

Friday

Sunny, with a high near 61.

Friday Night

Mostly clear, with a low around 38.

Saturday

Sunny, with a high near 73.

Saturday Night

Mostly clear, with a low around 46.

Sunday

Mostly sunny, with a high near 71.