Helena weather in May
Cool, with some rainy days. Average highs of 17°C and lows of 5°C, with around 11 rainy days expected throughout the month.
While May isn't our top-rated month for Helena, it has its own appeal — typically lower prices, fewer crowds, and a more local feel.
Average high
17°C
Average low
5°C
Rainy days
11 days
Best months to visit
June, July, August, September
What to do in Helena in May
Whatever the weather, Helena rewards curious visitors. Here are some of the best ways to spend your time:
Hike to Cathedral Peak for city views
Tour Victorian mansions in the historic district
Explore the Montana State Capitol building
Visit the Holter Museum of Art in a mansion
Hike King George Trail through ponderosa forest
Explore Last Chance Gulch's historic mining areas
What to pack for May
Layer up — a mid-weight jacket, jumpers, and comfortable trousers. Waterproof shoes are recommended. Scarves and gloves may be useful in the evenings.
Browse other months
January
0C
Cold, with occasional showers.
February
-1C
Cold, with occasional showers.
March
6C
Cold, with occasional showers.
April
11C
Cool, with occasional showers.
May (you are here)
17C
Cool, with some rainy days.
Recommended
June
23C
Mild and comfortable, with some rainy days.
Recommended
July
29C
Warm and pleasant, and mostly sunny skies.
Recommended
August
28C
Warm and pleasant, and mostly sunny skies.
Recommended
September
21C
Mild and comfortable, with occasional showers.
October
13C
Cool, with occasional showers.
November
5C
Cold, with occasional showers.
December
0C
Cold, with occasional showers.
Book your May trip to Helena
Find hotels, tours and experiences for the perfect escape.
