The best times to visit West Entrance Yellowstone for ideal weather are

June 11th to September 16th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other West Entrance Yellowstone Travel Info

Weather in West Entrance Yellowstone


Average temperatures in West Entrance Yellowstone vary somewhat. Considering humidity, temperatures feel cold for most of the year with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 15th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit West Entrance Yellowstone, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally late July where highs are regularly around 66.2°F (19°C) with temperatures rarely dropping below 51.8°F (11°C) at night.

West Entrance Yellowstone Temperatures (Fahrenheit)


West Entrance Yellowstone Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

West Entrance Yellowstone Perceived Temperature (F)


West Entrance Yellowstone Perceived Temperature (C)



Average West Entrance Yellowstone Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 45.2 41 35.5
Feb 46.2 41.1 35.5
Mar 49 42.5 35.4
Apr 54.2 46.7 38.5
May 58 50.8 42.9
Jun 62.8 55.5 47.7
Jul 65.1 58.1 50.9
Aug 64.2 57.6 50.8
Sep 61.3 54.9 47.7
Oct 56.7 50.7 43.4
Nov 50.6 45.8 39.6
Dec 46.2 41.5 35.1

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 7.3 5 1.9
Feb 7.9 5.1 1.9
Mar 9.4 5.8 1.9
Apr 12.3 8.2 3.6
May 14.4 10.4 6.1
Jun 17.1 13.1 8.7
Jul 18.4 14.5 10.5
Aug 17.9 14.2 10.4
Sep 16.3 12.7 8.7
Oct 13.7 10.4 6.3
Nov 10.3 7.7 4.2
Dec 7.9 5.3 1.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in West Entrance Yellowstone are April, June, and then May. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around mid April. For example, on the week of April 16th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late October to early November with an average of 4 days of significant precipitation the week of October 29th.

When can you find snow in West Entrance Yellowstone? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in West Entrance Yellowstone.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in West Entrance Yellowstone (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 43% 0 4.8
Feb 34% 0 3.3
Mar 25% 0 2.7
Apr 20% 0 2
May 25% 0 2.5
Jun 24% 0 3.1
Jul 29% 0 3
Aug 36% 0 4.5
Sep 27% 0 3
Oct 42% 0 5.7
Nov 40% 0 5
Dec 41% 0 5.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 43 0 12.2
Feb 34 0 8.4
Mar 25 0 6.9
Apr 20 0 5.1
May 25 0 6.4
Jun 24 0 7.9
Jul 29 0 7.6
Aug 36 0 11.4
Sep 27 0 7.6
Oct 42 0 14.5
Nov 40 0 12.7
Dec 41 0 13.2


Humidity and Wind

West Entrance Yellowstone has some extremely humid months, and high humidity throughout the year. The least humid month is April (77.1% relative humidity), and the most humid month is February (84.4%).

Wind in West Entrance Yellowstone is usually moderate. The windiest month is January, followed by December and November. January’s average wind speed of around 12.3 knots (14.1 MPH or 22.7 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid January where average top sustained speeds reach 20.6 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in West Entrance Yellowstone.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 12.3 Significant breeze 19.7 Strong breeze
Feb 10.7 Gentle breeze 17.6 Strong breeze
Mar 10.5 Gentle breeze 17.4 Strong breeze
Apr 9.3 Gentle breeze 15.6 Significant breeze
May 9.7 Gentle breeze 16 Strong breeze
Jun 8.5 Gentle breeze 14.5 Significant breeze
Jul 8.4 Gentle breeze 14.2 Strong breeze
Aug 9.2 Gentle breeze 15.1 Significant breeze
Sep 8.9 Gentle breeze 14.7 Strong breeze
Oct 9.9 Gentle breeze 16.2 Significant breeze
Nov 11 Significant breeze 18 Strong breeze
Dec 11.7 Significant breeze 19.2 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 83.3%
Feb 84.4%
Mar 80.2%
Apr 77.1%
May 77.8%
Jun 80.1%
Jul 84.1%
Aug 84.2%
Sep 83.1%
Oct 83.1%
Nov 82.8%
Dec 83.8%


Is it Safe to Travel to West Entrance Yellowstone?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


The Busiest and Least Crowded Months

The busiest month for tourism in West Entrance Yellowstone, MT, US is July, followed by January and September. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit West Entrance Yellowstone in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 66.4 in December means 66.4% of the tourists vs. July.



Overall West Entrance Yellowstone Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 61.5°F (16.4°C) and 47.7°F (8.7°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 8 days of significant precipitation per month. Spring is the slowest for tourism, which makes it a good time for those looking for deals.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are brisk. These months see moderate precipitation with 7 to 11 days of precipitation per month. June – August is the busiest season for tourism in West Entrance Yellowstone, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 62.2°F (16.8°C) and 46.9°F (8.3°C), which will feel chilly given the humidity and wind. It rains or snows a good amount: 8 to 13 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is too cold this time of year in West Entrance Yellowstone to be enjoyable for warm weather travelers. The average high during this season is between 47.7°F (8.7°C) and 44.4°F (6.9°C). On average, it rains or snows a great amount: 9 to 13 times per month. These times of year are the second busiest with tourists.


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