S
M
T
W
T
F
S
31
52°
43°
1
57°
45°
2
63°
46°
3
75°
52°
4
72°
47°
5
81°
50°
6
81°
54°
7
67°
44°
8
72°
48°
9
76°
50°
10
80°
53°
11
79°
52°
12
80°
50°
13
82°
55°
14
83°
52°
15
74°
53°
16
68°
52°
17
69°
53°
18
78°
54°
19
77°
52°
20
74°
53°
21
75°
50°
22
80°
55°
23
81°
55°
24
82°
54°
25
73°
49°
26
80°
55°
27
83°
55°
28
73°
49°
29
73°
50°
30
80°
55°
1
84°
57°
2
84°
57°
3
81°
56°
4
86°
59°
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 57° to 86°, with overnight lows between 44° and 59°. The average high for June is 77° 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.
