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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

64°F

18°C

Humidity	37%
Wind Speed	Vrbl 3 mph
Barometer	29.88 in (1005.6 mb)
Dewpoint	37°F (3°C)
Visibility	10.00 mi
Last update	10 Oct 8:56 am MDT

More Information:

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

Extended Forecast for

2 Miles NNW Fort Collins CO

Today
High: 85 °F
Increasing
Clouds
Tonight
Low: 57 °F
Mostly Cloudy
Sunday
High: 81 °F
Mostly Cloudy
Sunday Night
Low: 50 °F
Partly Cloudy
Columbus Day
High: 80 °F
Sunny
Monday Night
Low: 47 °F
Slight Chance
Showers
Tuesday
High: 69 °F
Slight Chance
Showers
Tuesday Night
Low: 44 °F
Showers
Likely
Wednesday
High: 65 °F
Showers
Likely

Detailed Forecast

Today

Increasing clouds, with a high near 85. Light and variable wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

Tonight

Mostly cloudy, with a low around 57. West wind 5 to 8 mph becoming calm after midnight.

Sunday

Mostly cloudy, with a high near 81. Light and variable wind becoming south southeast 6 to 11 mph in the afternoon. Winds could gust as high as 21 mph.

Sunday Night

Partly cloudy, with a low around 50. North wind 5 to 8 mph becoming calm after midnight.

Columbus Day

Sunny, with a high near 80. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

Monday Night

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

Tuesday

A 20 percent chance of showers. Mostly sunny, with a high near 69.

Tuesday Night

A chance of showers and thunderstorms, then showers likely after midnight. Mostly cloudy, with a low around 44.

Wednesday

Showers likely, mainly before noon. Mostly cloudy, with a high near 65.