The best times to visit Miles City for ideal weather are

May 21st to September 30th

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



Other Miles City Travel Info

Weather in Miles City


Average temperatures in Miles City vary an incredible amount. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 42nd 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 Miles City, 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 93.9°F (34.4°C) with temperatures rarely dropping below 62.2°F (16.8°C) at night.

Miles City Temperatures (Fahrenheit)


Miles City 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.

Miles City Perceived Temperature (F)


Miles City Perceived Temperature (C)



Average Miles City 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 32.6 20.6 10.7
Feb 34 21.8 12.7
Mar 50.8 35.9 25
Apr 60.7 45.4 33.2
May 69.7 55.6 43.6
Jun 80.5 65.9 53
Jul 92.1 75.8 61.1
Aug 90.1 73.2 58.6
Sep 80.3 62.9 48.6
Oct 62.7 47.9 36.5
Nov 46.6 32.7 22.1
Dec 31.5 20.2 10.9

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 0.3 -6.3 -11.8
Feb 1.1 -5.7 -10.7
Mar 10.4 2.2 -3.9
Apr 15.9 7.4 0.7
May 20.9 13.1 6.4
Jun 26.9 18.8 11.7
Jul 33.4 24.3 16.2
Aug 32.3 22.9 14.8
Sep 26.8 17.2 9.2
Oct 17.1 8.8 2.5
Nov 8.1 0.4 -5.5
Dec -0.3 -6.6 -11.7



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Miles City are February, December, and then January. 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 January. For example, on the week of January 8th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in late May to early June with an average of 3 days of significant precipitation the week of May 28th.

When can you find snow in Miles City? 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 Miles City.

Days with precipitation

Snow on the Ground

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

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 3% 0 0.2
Feb 1% 0 0.2
Mar 5% 0 0.5
Apr 9% 0 1.1
May 24% 0 4
Jun 21% 0 2.8
Jul 10% 0 1.2
Aug 11% 0 1.3
Sep 8% 0 0.6
Oct 9% 0 0.9
Nov 3% 0 0.3
Dec 1% 0 0.2

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 3 0 0.5
Feb 1 0 0.5
Mar 5 0 1.3
Apr 9 0 2.8
May 24 0 10.2
Jun 21 0 7.1
Jul 10 0 3
Aug 11 0 3.3
Sep 8 0 1.5
Oct 9 0 2.3
Nov 3 0 0.8
Dec 1 0 0.5


Humidity and Wind

Miles City has some humid months, and slightly dry months in the opposite season. The least humid month is July (34.7% relative humidity), and the most humid month is December (63.5%).

Wind in Miles City is usually moderate. The windiest month is April, followed by May and March. April’s average wind speed of around 9.4 knots (10.8 MPH or 17.4 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early May where average top sustained speeds reach 20 knots, which is considered a fresh breeze.

Relative Humidity (%)

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

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 8.5 Gentle breeze 16.3 Significant breeze
Feb 7.9 Gentle breeze 15 Significant breeze
Mar 8.6 Gentle breeze 16.6 Significant breeze
Apr 9.4 Gentle breeze 17.8 Strong breeze
May 9.4 Gentle breeze 17.8 Significant breeze
Jun 8.4 Gentle breeze 17 Strong breeze
Jul 7.8 Gentle breeze 16.8 Significant breeze
Aug 7.7 Gentle breeze 16.1 Significant breeze
Sep 7.6 Gentle breeze 15.2 Significant breeze
Oct 8.4 Gentle breeze 15.6 Significant breeze
Nov 8.1 Gentle breeze 15.3 Significant breeze
Dec 7.6 Gentle breeze 14.4 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 60.8%
Feb 61.9%
Mar 50.7%
Apr 43.8%
May 49%
Jun 47.5%
Jul 34.7%
Aug 35%
Sep 37.2%
Oct 48%
Nov 55.2%
Dec 63.5%


Is it Safe to Travel to Miles City?

Our best data indicates this area is generally safe. As of Dec 04, 2023 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 Dec 04, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Miles City, MT, US is August, followed by July 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 Miles City 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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 50.1 in December means 50.1% of the tourists vs. August.



Overall Miles City Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 74°F (23.3°C) and 35.8°F (2.1°C) with warmer temperatures in the later months. Rain is somewhat common with 2 to 8 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 very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 3 to 6 days of precipitation per month. June – August is the busiest season for tourism in Miles City, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 82.6°F (28.1°C) and 39.6°F (4.2°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 1 to 3 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 far too cold this time of year in Miles City to be enjoyable for warm weather travelers. The average high during this season is between 38.2°F (3.4°C) and 28.3°F (-2.1°C). On average, it rains or snows a very small amount: 0 to 1 times per month. These times of year are the slowest with tourists.


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