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Weather in August in Montana

Thinking about venturing to Montana this August and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Montana in August?

Montana is a region in the United States of America. Montana offers a broad spectrum of weather patterns. In August, one might encounter temperatures that range from warm to very warm, and precipitation levels ranging from low to moderate. In August, it is summer.

Temperatures

During the day the temperature is warm in Big Sky at 23°C and very warm in Hardin at 32°C. As night falls, temperatures generally drop to 13°C in Hardin and 6°C in Big Sky.

Precipitation

In August, precipitation varies across different areas. From low rainfall in Libby with an average of 16 mm to moderate rainfall in Lewistown with 53 mm. Based on our climate data it is the driest month of the year in Whitefish.

For a closer look at August's conditions in Montana, see the map below. For a more detailed look at Montana's yearly weather, check out our Montana climate page.

Where to go in Montana in August

Find more information for the most popular destinations in the Montana on the map below. Click on a destination dot for more detailes.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in August for the 5 most popular destinations in Montana?

Whitefish

In August Whitefish generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 8°C and low monthly rainfall. So on average the conditions are perfect that month.

Whitefish
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
29°C 
10°C 
31 mm 
9 days 
28°C 
8°C 
27 mm 
8 days 
22°C 
4°C 
31 mm 
9 days 
Climate in Whitefish

Billings

In August Billings generally has very high temperatures with maximum daytime temperatures around 31°C, minimum nighttime temperatures around 13°C and low monthly rainfall. So on average the conditions are perfect that month.

Billings
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
32°C 
15°C 
355 hours 
27 mm 
8 days 
31°C 
13°C 
329 hours 
27 mm 
6 days 
25°C 
8°C 
256 hours 
37 mm 
7 days 
Climate in Billings

Great Falls

In August Great Falls generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Great Falls
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
30°C 
12°C 
376 hours 
29 mm 
7 days 
29°C 
11°C 
328 hours 
31 mm 
7 days 
23°C 
7°C 
255 hours 
35 mm 
7 days 
Climate in Great Falls

Helena

In August Helena generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 10°C and low monthly rainfall. So on average the conditions are perfect that month.

Helena
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
29°C 
12°C 
370 hours 
29 mm 
10 days 
28°C 
10°C 
324 hours 
28 mm 
9 days 
22°C 
6°C 
254 hours 
34 mm 
9 days 
Climate in Helena

Red Lodge

In August Red Lodge generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 11°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Red Lodge
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
27°C 
12°C 
35 mm 
11 days 
26°C 
11°C 
31 mm 
11 days 
21°C 
7°C 
38 mm 
9 days 
Climate in Red Lodge

Is your destination not in the list? Have a look at other destinations in Montana, in the United States of America.

Is August the best time to visit Montana?

We believe that August is one of the best times to visit Montana with overall perfect weather in Whitefish.

On average, the best time to visit Montana is in June, July, August and September with generally perfect weather in Whitefish. On the other hand, the weather in January, February, March, November and December tend to be poor.

Interested in more climate information?

We have much more information about the climate in Montana. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.