S
M
T
W
T
F
S
31
56°
42°
1
N/A
2
47°
43°
3
62°
46°
4
67°
46°
5
67°
46°
6
65°
39°
7
61°
40°
8
68°
44°
9
72°
47°
10
66°
44°
11
62°
45°
12
66°
46°
13
67°
47°
14
72°
48°
15
68°
43°
16
71°
48°
17
71°
49°
18
72°
49°
19
71°
48°
20
67°
48°
21
72°
49°
22
72°
50°
23
73°
50°
24
70°
49°
25
68°
49°
26
73°
50°
27
73°
50°
28
68°
49°
29
65°
50°
30
73°
49°
1
68°
50°
2
66°
49°
3
73°
51°
4
75°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
June Weather in Montana
Montana's June 2026 forecast shows daily high temperatures ranging from 47° to 75°, with overnight lows between 39° and 52°. The average high for June is 68° with an average low of 47°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how June weather will actually feel in Montana. See also: July | August | September.