Bozeman

Montana Weather in May

Average temperatures, rainfall, sunshine and the best places to visit in Montana, the United States of America in May.

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Whitefish Billings Bozeman Great Falls

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

What to Expect in Montana in May

Montana, the United States of America 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 (55°F) to pleasant in Hardin at 22°C (72°F). Nighttime temperatures generally drop to 6°C (43°F) in Hardin and -1°C (30°F) in Big Sky.

For specific regional insights in Montana, the United States of America, refer to the map provided below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Libby with an average of 36 mm (1.4 in) to high rainfall in Red Lodge with 110 mm (4.3 in).

Explore Montana by month

Pick a month to see the average temperature, rainfall and sunshine in Montana — and find the best time to visit. (based on Whitefish)

January0°C (32°F) February2°C (36°F) March7°C (45°F) April13°C (55°F) May18°C (64°F) June22°C (72°F) This monthJuly29°C (84°F) August28°C (82°F) September22°C (72°F) October13°C (55°F) November4°C (39°F) December-1°C (30°F)
Best Time to Visit Montana →

Best Places to Visit in Montana in May

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Montana.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Montana

What is the weather like in May for some of the most popular destinations in Montana, the United States of America?

Temperature range in Montana (May)

Precipitation variation in Montana (May)

Whitefish

In May Whitefish generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
18°C (64°F)
22°C (72°F)
Min temperature
-1°C (30°F)
3°C (37°F)
7°C (45°F)
Monthly rainfall
39 mm (1.5 in)
59 mm (2.3 in)
91 mm (3.6 in)
Monthly rainy days
13 days
14 days
15 days
Weather conditions
unpleasant
pleasant
perfect
Climate in Whitefish →

Billings

In May Billings generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 6°C (43°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« April
May
June »
April
May
June
Max temperature
15°C (59°F)
20°C (68°F)
26°C (79°F)
Min temperature
1°C (34°F)
6°C (43°F)
11°C (52°F)
Monthly sun hours
256 hours
282 hours
305 hours
Monthly rainfall
35 mm (1.4 in)
79 mm (3.1 in)
38 mm (1.5 in)
Monthly rainy days
10 days
13 days
10 days
Weather conditions
tolerable
perfect
perfect
Climate in Billings →

Bozeman

In May Bozeman generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 3°C (37°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
18°C (64°F)
23°C (73°F)
Min temperature
-1°C (30°F)
3°C (37°F)
8°C (46°F)
Monthly rainfall
63 mm (2.5 in)
85 mm (3.3 in)
71 mm (2.8 in)
Monthly rainy days
14 days
17 days
15 days
Weather conditions
unpleasant
pleasant
perfect
Climate in Bozeman →

Great Falls

In May Great Falls generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are pleasant that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
18°C (64°F)
23°C (73°F)
Min temperature
0°C (32°F)
4°C (39°F)
9°C (48°F)
Monthly sun hours
247 hours
289 hours
318 hours
Monthly rainfall
53 mm (2.1 in)
67 mm (2.6 in)
58 mm (2.3 in)
Monthly rainy days
9 days
12 days
10 days
Weather conditions
unpleasant
pleasant
perfect
Climate in Great Falls →

Helena

In May Helena generally has moderate temperatures with maximum daytime temperatures around 17°C (63°F), minimum nighttime temperatures around 4°C (39°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
17°C (63°F)
23°C (73°F)
Min temperature
-1°C (30°F)
4°C (39°F)
8°C (46°F)
Monthly sun hours
243 hours
282 hours
308 hours
Monthly rainfall
39 mm (1.5 in)
59 mm (2.3 in)
54 mm (2.1 in)
Monthly rainy days
15 days
15 days
13 days
Weather conditions
unpleasant
tolerable
perfect
Climate in Helena →

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

Popular cities in May

Day & night temperatures, rainfall and average weather in Montana in May.

City Weather Day temp Night temp Rainfall
Whitefish 18°C (64°F) 3°C (37°F) 59 mm (2.3 in)
Billings 20°C (68°F) 6°C (43°F) 79 mm (3.1 in)
Bozeman 18°C (64°F) 3°C (37°F) 85 mm (3.3 in)
Great Falls 18°C (64°F) 4°C (39°F) 67 mm (2.6 in)
Helena 17°C (63°F) 4°C (39°F) 59 mm (2.3 in)
Red Lodge 15°C (59°F) 3°C (37°F) 110 mm (4.3 in)

Montana weather in May: frequently asked questions

What is the weather like in Montana, the United States of America in May?

May in Montana, the United States of America brings pleasant weather. In Whitefish, daytime temperatures are typically around 18°C (64°F) and nighttime lows hover near 3°C (37°F).

What is the average temperature in Montana, the United States of America in May?

In Whitefish, the average daytime high in May is 18°C (64°F), while nighttime temperatures drop to around 3°C (37°F).

Does Montana, the United States of America get a lot of rain in May?

Rain is generally moderate to light in Montana, the United States of America during May, with Whitefish averaging close to 59 mm (2.3 in).

Is May a Good Time to Visit Montana, the United States of America?

Given the typically pleasant weather conditions in Whitefish, May might be a good time to visit Montana, the United States of America. 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.

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.

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