The best times to visit Montana for ideal weather are

June 25th to September 2nd

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

 

 


Other Montana Travel Info

Weather in Montana

Temperature

Average temperatures in Montana vary greatly. Considering humidity, temperatures feel cold for most of the year with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 21st 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 Montana, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 69.7°F (20.9°C) with temperatures rarely dropping below 50.6°F (10.3°C) at night.

Montana Temperatures (Fahrenheit)

Key
High
Average
Low

Montana Temperatures (Celsius)

Key
High
Average
Low

“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.

Montana Perceived Temperature (F)

Key
High
Average
Low

Montana Perceived Temperature (C)

Key
High
Average
Low

 

Average Montana 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 35.1 29.2 23.1
Feb 35.3 28.4 21.9
Mar 43.1 35.2 28
Apr 52.8 43.6 35.5
May 57.9 48.8 40.9
Jun 65 55.5 47.2
Jul 68.8 58.6 49.8
Aug 68 58.4 50.1
Sep 60.7 51.6 43.8
Oct 53.2 45.2 38.5
Nov 43.7 37.1 31.2
Dec 36 30.2 24.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 1.7 -1.6 -4.9
Feb 1.8 -2 -5.6
Mar 6.2 1.8 -2.2
Apr 11.6 6.4 1.9
May 14.4 9.3 4.9
Jun 18.3 13.1 8.4
Jul 20.4 14.8 9.9
Aug 20 14.7 10.1
Sep 15.9 10.9 6.6
Oct 11.8 7.3 3.6
Nov 6.5 2.8 -0.4
Dec 2.2 -1 -4.3

 


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Montana are February, March, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid March. For example, on the week of March 12th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early December with an average of 3 days of significant precipitation the week of December 3rd.

When can you find snow in Montana? 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 Montana.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Montana (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 19% 0 2.5
Feb 13% 0 1.5
Mar 14% 0 1.9
Apr 15% 0 1.5
May 22% 0 3.2
Jun 23% 0 2.4
Jul 23% 0 3.2
Aug 21% 0 2.9
Sep 16% 0 1.6
Oct 15% 0 1.8
Nov 18% 0 2.3
Dec 25% 0 3.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 19 0 6.4
Feb 13 0 3.8
Mar 14 0 4.8
Apr 15 0 3.8
May 22 0 8.1
Jun 23 0 6.1
Jul 23 0 8.1
Aug 21 0 7.4
Sep 16 0 4.1
Oct 15 0 4.6
Nov 18 0 5.8
Dec 25 0 9.7

 

Humidity and Wind

Montana has some high humidity months, with other comfortably humid months. The least humid month is April (50.2% relative humidity), and the most humid month is September (65.5%).

Wind in Montana is usually extremely calm. The windiest month is April, followed by March and May. April’s average wind speed of around 4.3 knots (5 MPH or 8 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid May where average top sustained speeds reach 9.5 knots, which is considered a gentle breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Montana.

Key
Avg. Relative Humidity

Wind

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

Key
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 3.3 Barely noticeable 6.8 Light breeze
Feb 3.3 Barely noticeable 6.9 Light breeze
Mar 4.3 Light breeze 8.4 Light breeze
Apr 4.3 Light breeze 8.8 Gentle breeze
May 4 Light breeze 8.4 Light breeze
Jun 3.6 Barely noticeable 8.1 Gentle breeze
Jul 3.5 Barely noticeable 8 Light breeze
Aug 3.1 Barely noticeable 7.2 Gentle breeze
Sep 3 Barely noticeable 6.5 Light breeze
Oct 3.4 Barely noticeable 6.8 Light breeze
Nov 3.8 Barely noticeable 7.2 Light breeze
Dec 3.4 Barely noticeable 6.7 Light breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 59.4%
Feb 57.1%
Mar 51.6%
Apr 50.2%
May 56.8%
Jun 59.5%
Jul 59.3%
Aug 61.6%
Sep 65.5%
Oct 63.5%
Nov 61%
Dec 61.4%

 

Is it Safe to Travel to Montana?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for Switzerland; 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 Nov 14, 2023.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Montana, Switzerland is June, followed by August and April. 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 Montana in October. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 53 in October means 53% of the tourists vs. June.

 

 

Overall Montana 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 39.9°F (4.4°C) with warmer temperatures in the later months. Rain is somewhat common with 4 to 7 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have comfortably cool weather with high temperatures that are comfortable. These months see the most precipitation with 6 to 7 days of precipitation per month. June – August is the busiest season for tourism in Montana, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 64°F (17.8°C) and 37.3°F (2.9°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: approximately 5 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Montana to be enjoyable for warm weather travelers. The average high during this season is between 40.8°F (4.9°C) and 31.7°F (-0.2°C). On average, it rains or snows a fair amount: 4 to 8 times per month. These times of year are fairly slow with tourists.

 

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