West Yellowstone weather in January 2026

Expect daytime maximum temperatures of -6°C in West Yellowstone in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 62 mm of rainfall in the month, which might fall as snow.

  • -6°C maximum daytime temperature in January in West Yellowstone-6
    -6°C max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in January in West Yellowstone10
    10 days with some rainfall
  • -17°C minimum night-time temperature in January in West Yellowstone-17
    -17°C min night temperature
  • 9 hours of daylight per day in January in West Yellowstone9
    9 hours of daylight per day
  • No heat & humidity in January in West Yellowstone0
    No heat & humidity
  • 62 mm monthly rainfall in January in West Yellowstone62
    62 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in West Yellowstone1
    1 (Low) UV index

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The January 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 cold is it in West Yellowstone in January?

Daytime temperatures usually reach -6°C in West Yellowstone in January, falling to -17°C at night.

How sunny is it in West Yellowstone in January?

There are normally 5 hours of bright sunshine each day in West Yellowstone in January - that's 50% of daylight hours.

Does it rain in West Yellowstone in January?

There are usually 10 days with some rain in West Yellowstone in January and the average monthly rainfall is 62mm. Rain may fall as snow in this month.

West Yellowstone January sunrise & sunset times

Browse the sunrise and sunset times for West Yellowstone in January 2026. Select a month to view West Yellowstone sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st January 2026 08:01 16:55
Friday, 16th January 2026 07:57 17:12
Saturday, 31st January 2026 07:44 17:32

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