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Hourly Forecast
Daylight Hours
06:48
Sunrise
19:00
Sunset
Moon
Waxing Crescent
12:45
Moonrise
21:08
Moonset
Daily Forecast
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Air Quality Data Available
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UV Index
Humidity
Weather in Fort Collins today, September 16, 2026
Cloud cover dominates in Fort Collins on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 09:00. Outdoor plans early on should not rely on bright skies.
The day peaks near 29°C and cools toward 10°C. Expect humidity between 27% and 83%, most humid near 18:00. Expect gentle winds, highest near 20:00 at 5.3 km/h.
Afternoon skies stay clogged, peaking close to 100% near 15:00. The grey theme continues rather than clearing out. Visibility holds near 15.3 km, though it can fall to 6.0 km. Sunrise is at 06:48 and sunset at 19:00, giving 12 hours 12 minutes of sunlight today.
Taken together, overcast skies in Fort Collins on September 16, 2026 favour indoor or covered options, with temperatures near 29°C.
Frequently asked questions about weather in Fort Collins
How warm does it get in Fort Collins?
The warmest month in Fort Collins is July, with average high temperatures of 32°C. The average temperature during this period is around 23°C.
How cold does it get in Fort Collins?
The coldest month in Fort Collins is January, with average low temperatures of -7°C. The average temperature during this period is around -2°C.
What is the wettest time of year in Fort Collins?
The wettest month in Fort Collins is May, with an average of 106mm of precipitation.
What is the driest time of year in Fort Collins?
The driest month in Fort Collins is December, with an average of 17mm of precipitation.
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