S
M
T
W
T
F
S
31
52°
47°
1
60°
47°
2
66°
44°
3
74°
41°
4
72°
46°
5
78°
40°
6
68°
48°
7
58°
37°
8
72°
31°
9
63°
46°
10
58°
44°
11
71°
46°
12
76°
39°
13
70°
45°
14
78°
39°
15
83°
42°
16
84°
58°
17
77°
52°
18
78°
49°
19
82°
57°
20
83°
51°
21
82°
45°
22
78°
47°
23
81°
50°
24
87°
52°
25
80°
51°
26
66°
52°
27
62°
48°
28
54°
50°
29
57°
49°
30
73°
51°
1
71°
48°
2
71°
50°
3
74°
46°
4
70°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Missoula
Missoula's June 2026 forecast shows daily high temperatures ranging from 54° to 74°, with overnight lows between 46° and 51°. The average high for June is 67° with an average low of 49°. 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 Missoula. See also: July | August | September.