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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West Yellowstone by month

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Recommended for Montana

  • Kids stay & eat for free at Marriot Bonvoy
  • Destinations include Europe, Middle East & Africa
  • Valid for up to 2 adults & 2 kids aged up to 12

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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