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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.

Fair

79°F

26°C

Humidity	20%
Wind Speed	NE 6 mph
Barometer	29.77 in
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	10 Oct 5:15 pm MDT

More Information:

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

Extended Forecast for

5 Miles SSW Crescent Village CO

This Afternoon
High: 64 °F
Slight Chance
Showers
Tonight
Low: 50 °F
Mostly Cloudy
Sunday
High: 67 °F
Mostly Cloudy
then Slight
Chance
Showers
Sunday Night
Low: 47 °F
Decreasing
Clouds
Columbus Day
High: 67 °F
Sunny
Monday Night
Low: 43 °F
Mostly Clear
Tuesday
High: 57 °F
Sunny then
Slight Chance
Showers
Tuesday Night
Low: 40 °F
Showers
Likely
Wednesday
High: 47 °F
Showers
Likely

Detailed Forecast

This Afternoon

A 20 percent chance of showers. Partly sunny, with a steady temperature around 64. West southwest wind around 7 mph.

Tonight

Mostly cloudy, with a low around 50. West southwest wind 7 to 9 mph, with gusts as high as 15 mph.

Sunday

A 20 percent chance of showers after 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 67. Southwest wind around 6 mph becoming light and variable in the afternoon.

Sunday Night

Mostly cloudy, then gradually becoming clear, with a low around 47. Calm wind becoming west southwest 5 to 7 mph in the evening.

Columbus Day

Sunny, with a high near 67. West wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 18 mph.

Monday Night

Mostly clear, with a low around 43.

Tuesday

A 20 percent chance of showers after noon. Mostly sunny, with a high near 57.

Tuesday Night

Showers likely. Mostly cloudy, with a low around 40.

Wednesday

Showers likely. Mostly cloudy, with a high near 47.