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Denver's Monthly Weather Summary for September 2026

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

45°F

7°C

Humidity	52%
Wind Speed	E 3 mph
Barometer	30.45 in
Dewpoint	28°F (-2°C)
Visibility	10.00 mi
Last update	7 Oct 3:35 am MDT

More Information:

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

Extended Forecast for

5 Miles SSW Trail Ridge CO

Today
High: 52 °F
Sunny then
Chance
Rain/Snow
Tonight
Low: 34 °F
Slight Chance
Rain/Snow
then Mostly
Clear
Thursday
High: 50 °F
Sunny
Thursday Night
Low: 33 °F
Mostly Clear
Friday
High: 49 °F
Sunny
Friday Night
Low: 33 °F
Mostly Clear
and Breezy
Saturday
High: 46 °F
Mostly Sunny
and Breezy
Saturday Night
Low: 33 °F
Partly Cloudy
and Breezy
Sunday
High: 43 °F
Partly Sunny
then Chance
Rain/Snow

Detailed Forecast

Today

A chance of rain and snow showers between noon and 3pm, then a chance of rain showers after 3pm. Mostly sunny, with a high near 52. Light and variable wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 30%. Little or no snow accumulation expected.

Tonight

A slight chance of rain and snow showers before 9pm. Partly cloudy, with a low around 34. South southeast wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 20%.

Thursday

Sunny, with a high near 50. West wind 5 to 7 mph.

Thursday Night

Mostly clear, with a low around 33. Light west wind increasing to 5 to 9 mph in the evening.

Friday

Sunny, with a high near 49. West wind 8 to 14 mph, with gusts as high as 24 mph.

Friday Night

Mostly clear, with a low around 33. Breezy.

Saturday

Mostly sunny, with a high near 46. Breezy.

Saturday Night

Partly cloudy, with a low around 33. Breezy.