Best time to visit Dillon, MT

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

The most comfortable travel window in Dillon runs from June through September — 4 months of pleasant temperatures and modest rainfall.

January Cold
High
33.3°F
Low
14.5°F
Precip
0.31 in

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

Daylight ≈ 8h 55m

February Cold
High
36.7°F
Low
15.8°F
Precip
0.35 in

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

Daylight ≈ 10h 10m

March Cool
High
45.9°F
Low
22.5°F
Precip
0.67 in

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

Daylight ≈ 11h 40m

April Cool
High
54.3°F
Low
28.4°F
Precip
1.51 in

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

Daylight ≈ 13h 17m

May Cool
High
64.4°F
Low
36.1°F
Precip
1.93 in

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

Daylight ≈ 14h 40m

June Good
High
72.8°F
Low
42.2°F
Precip
1.92 in

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

Daylight ≈ 15h 23m

July Good
High
82.9°F
Low
47.6°F
Precip
0.91 in

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

Daylight ≈ 15h 7m

August Good
High
80.9°F
Low
45.5°F
Precip
0.86 in

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

Daylight ≈ 13h 54m

September Good
High
70.8°F
Low
39.3°F
Precip
0.89 in

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

Daylight ≈ 12h 18m

October Cool
High
56.4°F
Low
30.3°F
Precip
0.95 in

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

Daylight ≈ 10h 42m

November Cold
High
41.3°F
Low
21.0°F
Precip
0.52 in

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

Daylight ≈ 9h 16m

December Cold
High
31.6°F
Low
13.2°F
Precip
0.45 in

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

Daylight ≈ 8h 34m

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