Best time to visit Harlem, MT
A month-by-month travel weather guide based on NOAA 30-year climate normals.
The most comfortable travel window in Harlem 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 31m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 9h 56m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 11h 38m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 13h 27m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 1m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 51m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 15h 32m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 14h 9m
Comfortable for most activities. Bring layers; nights can be cool.
Daylight ≈ 12h 20m
Mild but on the chilly side. Pack a jacket; great for hiking and city walks.
Daylight ≈ 10h 32m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 55m
Winter weather. Plan around weather; good for snow sports if applicable.
Daylight ≈ 8h 6m
Looking for similar climates? See Harlem's climate twins. Or jump straight to the full climate profile.