West Yellowstone Montana Weather & Seasons

West Yellowstone Montana
> Weather

Summers are warm and mild with temperatures in the upper 70s. Fall is cool and pretty. Winters are cold and clear, with temps around zero. Spring brings rain, clouds, and occasional snow.

Summer (Memorial Day to Labor Day)

Weather: Summers in West Yellowstone are generally sunny and dry, with thundershowers in the afternoon and lightning storms on occasion. It’s good to have sunscreen with you at all times, and use it. The average temperatures during the day are in the mid to upper 70s. Nights are in the upper 30s and lower 40s. If traveling to higher elevations, temps can reach the 20s at night.

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Fall (September to October)

Weather: The crisp days of fall are a welcome treat, along with the colorful foliage, despite the weather’s unpredictability. Snowstorms come with more frequency as winter approaches, with accompanying drops in temperatures. Highs during the day average from the 40s to the 60s. Nighttime temperatures average around 30 degrees in September, dropping to between 10 and 22 degrees in October and November.

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Winter (November - mid April)

Weather: Winters can be bitterly cold in West Yellowstone, but at times warm Chinook winds come blowing in and push temperatures up into the 40s. Winter temperatures during daylight hours often hover near zero but can get into the upper 20s. Nighttime temperatures commonly go subzero. As spring approaches, the weather gets better, with highs averaging in the 30s and 40s and lows in the teens.

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Spring (mid April - mid May)

Weather: Clouds and rain are more abundant in the spring in West Yellowstone, with cold and snow lingering, often into May. Daytime temperatures average from lows of the 40s to highs of the 70s, with nights falling to the 20s and 30s.

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Questions & Answers

West Yellowstone has a repuation for being one of the coldest locations in the continental US year-round. Snowstorms are even fairly common in the summer because West Yellowstone is a high mountain town stationed at over 6,000 feet above sea level on a plateau where storms often break. Landlocked West Yellowstone is also far from the insulating effects of the oceans. Together, these factors give West Yellowstone a climate where daily temperuates can have large fluctuations. If you plan on visiting West Yellowstone in the summer, pack cold weather gear because snowstorms can come at any time--even in July.