Best time to visit Great Falls, MT
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Great Falls runs from May through September — 5 months of pleasant temperatures and modest rainfall.
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 39m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 10h 0m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 11h 39m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 13h 23m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 54m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 42m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 24m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 4m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 12h 19m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 10h 35m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 9h 2m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 15m
Looking for similar climates? See Great Falls's climate twins. Or jump straight to the full climate profile.