S
M
T
W
T
F
S
31
75°
52°
1
N/A
2
76°
57°
3
82°
59°
4
72°
57°
5
79°
62°
6
78°
61°
7
74°
58°
8
73°
55°
9
71°
57°
10
75°
56°
11
80°
58°
12
80°
57°
13
78°
58°
14
71°
60°
15
73°
62°
16
74°
62°
17
76°
61°
18
77°
61°
19
71°
59°
20
77°
62°
21
78°
61°
22
76°
58°
23
72°
56°
24
73°
60°
25
73°
60°
26
79°
63°
27
80°
63°
28
81°
64°
29
82°
59°
30
73°
56°
1
73°
58°
2
74°
58°
3
75°
60°
4
81°
64°
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 71° to 82°, with overnight lows between 55° and 64°. The average high for June is 76° with an average low of 59°. 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.