S
M
T
W
T
F
S
31
84°
66°
1
85°
65°
2
82°
61°
3
80°
62°
4
84°
70°
5
81°
68°
6
76°
65°
7
79°
65°
8
83°
64°
9
86°
65°
10
84°
65°
11
82°
64°
12
83°
63°
13
82°
64°
14
83°
63°
15
86°
59°
16
75°
60°
17
75°
61°
18
76°
61°
19
77°
63°
20
78°
64°
21
81°
68°
22
80°
66°
23
82°
65°
24
85°
69°
25
85°
69°
26
87°
68°
27
82°
68°
28
85°
69°
29
85°
69°
30
84°
68°
1
83°
69°
2
86°
70°
3
88°
67°
4
82°
63°
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 75° to 88°, with overnight lows between 59° and 70°. The average high for June is 82° with an average low of 65°. 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.
