Fort Collins Weather in October

What's the weather like in Fort Collins (Colorado) in October 2025?

The climate in Fort Collins during October can be summarized as cool and dry.

October is in the fall / autumn in Fort Collins and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 18°C (64°F), whilst at night 2°C (35°F) is normal.

Fort Collins weather averages (imperial / metric)
Daytime temperature 17.9°C 64.1°F
Nightly temperature 1.8°C 35.2°F
Average temperature 9.8°C 49.6°F
Daily sunshine 8.5 hrs
Avg rainfall 25 mm 1 ins
Rainy days 5 days
Sea temperature 15.3°C 59.5°F
Humidity 49%
Windspeed 16.2kph 10 mph

On average October is the 5th driest month of the year in Fort Collins with around 25mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.5 hours of sunshine per day.

October temperatures in Fort Collins

Fort Collins average temperature in October

October rainfall

Fort Collins average rain in October

October hourly sunshine

Fort Collins average rain in October

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Fort Collins in October 2025.

Other monthly averages

Best places to visit in October

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Fort Collins weather stats

Fort Collins weather statistics
Hottest month: July 29.3°C 84.7°F
Driest month: February 11mm 0.4ins
Sunniest month: September 9.6hrs
Coldest month: January 4.6°C 40.3°F
Wettest month: May 70mm 2.8ins
Map showing location of Fort Collins (40.58526, -105.08442) Fort Collins map pin © Google

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