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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

44°F

7°C

Humidity	63%
Wind Speed	E 6 mph
Barometer	30.47 in
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	41°F (5°C)
Last update	8 Oct 1:35 am MDT

More Information:

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

Extended Forecast for

3 Miles SW Deer Ridge CO

Overnight
Low: 48 °F
Mostly Clear
Thursday
High: 66 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 43 °F
Slight Chance
Showers then
Mostly Clear
Friday
High: 65 °F
Sunny then
Slight Chance
Showers
Friday Night
Low: 45 °F
Mostly Clear
and Breezy
Saturday
High: 61 °F
Sunny and
Breezy then
Chance
Showers
Saturday Night
Low: 44 °F
Mostly Cloudy
Sunday
High: 59 °F
Mostly Cloudy
then Slight
Chance
T-storms
Sunday Night
Low: 44 °F
Chance
Showers

Detailed Forecast

Overnight

Mostly clear, with a steady temperature around 48. West wind around 8 mph.

Thursday

A slight chance of showers between noon and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 66. West wind 5 to 7 mph becoming light and variable in the afternoon. Chance of precipitation is 20%.

Thursday Night

A 20 percent chance of showers before 8pm. Mostly cloudy, then gradually becoming clear, with a low around 43. West wind 3 to 8 mph.

Friday

A 20 percent chance of showers after 2pm. Sunny, with a high near 65. West southwest wind 8 to 13 mph, with gusts as high as 21 mph.

Friday Night

Mostly clear, with a low around 45. Breezy, with a west southwest wind 9 to 17 mph, with gusts as high as 31 mph.

Saturday

A 30 percent chance of showers after noon. Mostly sunny, with a high near 61. Breezy.

Saturday Night

Mostly cloudy, with a low around 44.

Sunday

A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 59.