Fort Collins weather in October 2025

Expect 18°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Fort Collins in October. Check more long-term weather averages for Fort Collins in October before you book your next holiday to Colorado in 2025/2026.

  • 18°C maximum daytime temperature in October in Fort Collins18
    18°C max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in October in Fort Collins5
    5 days with some rainfall
  • 2°C minimum night-time temperature in October in Fort Collins2
    2°C min night temperature
  • 11 hours of daylight per day in October in Fort Collins11
    11 hours of daylight per day
  • No heat & humidity in October in Fort Collins0
    No heat & humidity
  • 25 mm monthly rainfall in October in Fort Collins25
    25 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in Fort Collins4
    4 (Moderate) UV index

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The October 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Fort Collins in October?

Daytime temperatures usually reach 18°C in Fort Collins in October, falling to 2°C at night.

How sunny is it in Fort Collins in October?

There are normally 8 hours of bright sunshine each day in Fort Collins in October - that's 70% of daylight hours.

Does it rain in Fort Collins in October?

There are usually 5 days with some rain in Fort Collins in October and the average monthly rainfall is 25mm.

Fort Collins October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 05:57 17:42
Thursday, 16th October 2025 06:13 17:18
Friday, 31st October 2025 06:30 16:58

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