Fort Collins weather in August 2025

Expect 82°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Fort Collins in August. Check more long-term weather averages for Fort Collins in August before you book your next holiday to Colorado in 2025/2026.

  • 82°F maximum daytime temperature in August in Fort Collins82
    82°F max day temperature
  • 10 hours of sunshine per day
  • 9 days with some rainfall in August in Fort Collins9
    9 days with some rainfall
  • 55°F minimum night-time temperature in August in Fort Collins55
    55°F min night temperature
  • 14 hours of daylight per day in August in Fort Collins14
    14 hours of daylight per day
  • Low heat & humidity in August in Fort CollinsL
    Low heat & humidity
  • 1.3 inches monthly rainfall in August in Fort Collins1.3
    1.3 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Fort Collins9
    9 (Very High) UV index

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The August weather guide for Colorado (Fort Collins) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Fort Collins in August?

Daytime temperatures usually reach 82°F in Fort Collins in August with low heat and humidity, falling to 55°F at night.

How sunny is it in Fort Collins in August?

There are normally 10 hours of bright sunshine each day in Fort Collins in August - that's 72% of daylight hours.

Does it rain in Fort Collins in August?

There are usually 9 days with some rain in Fort Collins in August and the average monthly rainfall is 1.3 inches.

Fort Collins August sunrise & sunset times

Browse the sunrise and sunset times for Fort Collins in August 2025. Select a month to view Fort Collins sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:58 19:15
Saturday, 16th August 2025 05:12 18:56
Sunday, 31st August 2025 05:27 18:33

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