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Denver's Monthly Weather Summary for September 2026

Current conditions at

Fort Collins/Loveland - Northern Colorado Regional Airport (KFNL)

Lat: 40.45°NLon: 105.02°WElev: 5016ft.

Fair

87°F

31°C

Humidity	13%
Wind Speed	E 9 mph
Barometer	29.88 in (1005.0 mb)
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Heat Index	83°F (28°C)
Last update	9 Oct 3:56 pm MDT

More Information:

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

Extended Forecast for

2 Miles E Horsetooth Mountain CO

Tonight
Low: 53 °F
Decreasing
Clouds
Saturday
High: 84 °F
Increasing
Clouds
Saturday Night
Low: 58 °F
Mostly Cloudy
Sunday
High: 80 °F
Mostly Cloudy
Sunday Night
Low: 51 °F
Partly Cloudy
Columbus Day
High: 76 °F
Sunny
Monday Night
Low: 47 °F
Slight Chance
Showers
Tuesday
High: 69 °F
Slight Chance
Showers
Tuesday Night
Low: 44 °F
Showers
Likely

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming clear, with a low around 53. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 16 mph.

Saturday

Increasing clouds, with a high near 84. Light and variable wind becoming west southwest 9 to 14 mph in the morning. Winds could gust as high as 21 mph.

Saturday Night

Mostly cloudy, with a low around 58. West wind 5 to 9 mph becoming light after midnight.

Sunday

Mostly cloudy, with a high near 80. Light and variable wind becoming south southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

Sunday Night

Partly cloudy, with a low around 51. Northwest wind 5 to 8 mph becoming calm after midnight.

Columbus Day

Sunny, with a high near 76.

Monday Night

A 20 percent chance of showers. Partly cloudy, with a low around 47.

Tuesday

A slight chance of showers. Mostly sunny, with a high near 69.