Best time to visit Colstrip, MT

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in Colstrip runs from May through September — 5 months of pleasant temperatures and modest rainfall.

January Cold
High
35.8°F
Low
13.5°F
Precip
0.65 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 51m

February Cold
High
37.1°F
Low
15.1°F
Precip
0.69 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 7m

March Cool
High
47.1°F
Low
23.9°F
Precip
0.95 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 11h 40m

April Cool
High
55.4°F
Low
31.9°F
Precip
1.92 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 13h 19m

May Good
High
64.9°F
Low
41.9°F
Precip
3.14 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 44m

June Excellent
High
74.9°F
Low
50.8°F
Precip
2.48 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 15h 29m

July Good
High
85.0°F
Low
57.2°F
Precip
1.42 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 15h 12m

August Good
High
84.0°F
Low
55.2°F
Precip
1.03 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 13h 57m

September Good
High
73.4°F
Low
45.8°F
Precip
1.43 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 12h 18m

October Cool
High
58.1°F
Low
33.7°F
Precip
1.44 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 10h 40m

November Cool
High
45.9°F
Low
23.6°F
Precip
0.69 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 9h 12m

December Cold
High
36.6°F
Low
15.3°F
Precip
0.56 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 29m

Looking for similar climates? See Colstrip's climate twins. Or jump straight to the full climate profile.