West Yellowstone weather in October 2025

Expect 11°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in West Yellowstone in October. Check more long-term weather averages for West Yellowstone in October before you book your next holiday to Montana in 2025/2026.

  • 11°C maximum daytime temperature in October in West Yellowstone11
    11°C max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in October in West Yellowstone7
    7 days with some rainfall
  • -4°C minimum night-time temperature in October in West Yellowstone-4
    -4°C min night temperature
  • 11 hours of daylight per day in October in West Yellowstone11
    11 hours of daylight per day
  • No heat & humidity in October in West Yellowstone0
    No heat & humidity
  • 37 mm monthly rainfall in October in West Yellowstone37
    37 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in October in West Yellowstone4
    4 (Moderate) UV index

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The October weather guide for Montana (West Yellowstone) 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 warm is it in West Yellowstone in October?

Daytime temperatures usually reach 11°C in West Yellowstone in October, falling to -4°C at night.

How sunny is it in West Yellowstone in October?

There are normally 7 hours of bright sunshine each day in West Yellowstone in October - that's 64% of daylight hours.

Does it rain in West Yellowstone in October?

There are usually 7 days with some rain in West Yellowstone in October and the average monthly rainfall is 37mm.

West Yellowstone October sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:23 18:04
Thursday, 16th October 2025 06:42 17:37
Friday, 31st October 2025 07:01 17:14

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