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Denver's Monthly Weather Summary for September 2026

Current conditions at

Denver - Centennial Airport (KAPA)

Lat: 39.56°NLon: 104.85°WElev: 5869ft.

Partly Cloudy

63°F

17°C

Humidity	34%
Wind Speed	SW 12 mph
Barometer	30.21 in (1016.9 mb)
Dewpoint	34°F (1°C)
Visibility	10.00 mi
Last update	7 Oct 11:53 pm MDT

More Information:

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

Extended Forecast for

Littleton CO

Overnight
Low: 55 °F
Partly Cloudy
Thursday
High: 85 °F
Sunny
Thursday Night
Low: 55 °F
Decreasing
Clouds
Friday
High: 85 °F
Sunny
Friday Night
Low: 55 °F
Mostly Clear
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 57 °F
Partly Cloudy
Sunday
High: 79 °F
Partly Sunny
Sunday Night
Low: 54 °F
Partly Cloudy

Detailed Forecast

Overnight

Partly cloudy, with a low around 55. South wind around 6 mph.

Thursday

Sunny, with a high near 85. South wind around 6 mph becoming light and variable.

Thursday Night

Mostly cloudy, then gradually becoming clear, with a low around 55. North northwest wind around 7 mph becoming south southwest in the evening. Winds could gust as high as 15 mph.

Friday

Sunny, with a high near 85. South wind 3 to 8 mph. Winds could gust as high as 17 mph.

Friday Night

Mostly clear, with a low around 55. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.

Saturday

Sunny, with a high near 83.

Saturday Night

Partly cloudy, with a low around 57.

Sunday

Partly sunny, with a high near 79.

Sunday Night

Partly cloudy, with a low around 54.