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Weather in May in Montana

Considering a trip to Montana this May and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What is the weather like in Montana in May?

Montana is a region in the United States of America. In May, Montana experiences a range of weather conditions, with temperatures that range from mild to pleasant and precipitation levels ranging from moderate to high.

Temperatures

The average maximum daytime temperatures vary from mild in Big Sky at 13°C to pleasant in Hardin at 22°C. Nighttime temperatures generally drop to 6°C in Hardin and -1°C in Big Sky.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Libby with an average of 36 mm to high rainfall in Red Lodge with 110 mm.

To learn more about the conditions in specific areas of Montana in May, check out the map below. For more details on the yearly weather, visit our Montana climate page.

Where to go in Montana in May

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 May for the 5 most popular destinations in Montana?

Whitefish

In May Whitefish generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 3°C and moderate monthly rainfall. So on average the conditions are pleasant 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
<<   April April
<<  
13°C 
-1°C 
39 mm 
13 days 
18°C 
3°C 
59 mm 
14 days 
June   >> June
>>  
22°C 
7°C 
91 mm 
15 days 
Climate in Whitefish

Billings

In May Billings generally has pleasant temperatures with maximum daytime temperatures around 20°C, minimum nighttime temperatures around 6°C and moderate 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
<<   April April
<<  
15°C 
1°C 
256 hours 
35 mm 
10 days 
20°C 
6°C 
282 hours 
79 mm 
13 days 
June   >> June
>>  
26°C 
11°C 
305 hours 
38 mm 
10 days 
Climate in Billings

Great Falls

In May Great Falls generally has moderate temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 4°C and moderate monthly rainfall. So on average the conditions are pleasant 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
<<   April April
<<  
13°C 
-0°C 
247 hours 
53 mm 
9 days 
18°C 
4°C 
289 hours 
67 mm 
12 days 
June   >> June
>>  
23°C 
9°C 
318 hours 
58 mm 
10 days 
Climate in Great Falls

Helena

In May Helena generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 4°C and moderate monthly rainfall. So on average the conditions are tolerable 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
<<   April April
<<  
13°C 
-1°C 
243 hours 
39 mm 
15 days 
17°C 
4°C 
282 hours 
59 mm 
15 days 
June   >> June
>>  
23°C 
8°C 
308 hours 
54 mm 
13 days 
Climate in Helena

Red Lodge

In May Red Lodge generally has moderate temperatures with maximum daytime temperatures around 15°C, minimum nighttime temperatures around 3°C and high monthly rainfall. So on average the conditions are unpleasant 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
<<   April April
<<  
11°C 
-2°C 
56 mm 
13 days 
15°C 
3°C 
110 mm 
17 days 
June   >> June
>>  
22°C 
7°C 
47 mm 
13 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 May the best time to visit Montana?

Given the typically pleasant weather conditions in Whitefish, May might be a good time to visit Montana. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in June, July, August and September offering mostly perfect weather in Whitefish. In contrast, January, February, March, November and December tend to have poor weather conditions.

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.

  • January      
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  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • 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.