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West Yellowstone (MT) Weather and Climate: A Comprehensive Guide

The climate in West Yellowstone is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to very cold in the cooler months. It receives a moderate amount of precipitation. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

In West Yellowstone, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 27°C in July to a very cold -3°C in January.

Nighttime temperatures can drop, with average lows reaching -16°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

On average, West Yellowstone receives a reasonable amount of rain/snowfall, with an annual precipitation of 648 mm. The seasons in West Yellowstone, bring significant changes in precipitation. The wettest month, December, receives moderate snowfall, with an average of 80 mm of precipitation. This snowfall is distributed across 16 snowy days.

In contrast, the driest month, August, experiences much less rainfall, totaling 27 mm over 8 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our West Yellowstone Precipitation page.

The mean monthly precipitation over the year, including rain, hail and snow

Forecast for West Yellowstone (MT)

Tue   Dec 24
1°C | -8°C
W 1 m/s
broken clouds and no rain

broken clouds and no rain

Wed   Dec 25
-1°C | -8°C
SW 1 m/s
3.1 mm
overcast and snow

overcast and snow

Thu   Dec 26
-3°C | -8°C
SW 2 m/s
13 mm
overcast and heavy snow

overcast and heavy snow

The best time of year to visit West Yellowstone in the United States of America

During the months of June, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is winter in West Yellowstone?
    The coldest season / winter is in the following months: January, February, November and December.
  • Which is the warmest month in West Yellowstone?
    July has an average maximum temperature of 27°C and is the warmest month of the year.
  • Which is the coldest month in West Yellowstone?
    The coldest month is January with an average maximum temperature of -3°C.
  • Which is the wettest month in West Yellowstone?
    December tops the wettest month list with 80 mm of rainfall.
  • Which is the driest month in West Yellowstone?
    August is the driest month with 27 mm of precipitation.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.