S
M
T
W
T
F
S
31
52°
43°
1
57°
41°
2
59°
45°
3
74°
43°
4
74°
52°
5
80°
46°
6
73°
54°
7
58°
41°
8
76°
34°
9
70°
49°
10
59°
45°
11
71°
47°
12
75°
43°
13
63°
46°
14
73°
39°
15
83°
43°
16
86°
59°
17
76°
52°
18
76°
46°
19
78°
47°
20
80°
51°
21
76°
48°
22
70°
43°
23
82°
48°
24
84°
51°
25
80°
52°
26
90°
52°
27
69°
48°
28
73°
51°
29
80°
52°
30
84°
56°
1
89°
57°
2
92°
58°
3
82°
57°
4
82°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
June Weather in Helena
Helena's June 2026 forecast shows daily high temperatures ranging from 69° to 92°, with overnight lows between 43° and 58°. The average high for June is 81° with an average low of 52°. 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 Helena. See also: July | August | September.
