S
M
T
W
T
F
S
31
94°
71°
1
94°
75°
2
89°
71°
3
86°
62°
4
84°
65°
5
87°
63°
6
90°
71°
7
87°
75°
8
89°
76°
9
91°
74°
10
91°
73°
11
92°
75°
12
89°
71°
13
90°
70°
14
84°
72°
15
85°
68°
16
87°
69°
17
89°
67°
18
87°
74°
19
90°
73°
20
84°
72°
21
86°
71°
22
84°
69°
23
83°
66°
24
89°
71°
25
90°
70°
26
91°
77°
27
93°
75°
28
95°
73°
29
96°
73°
30
96°
77°
1
95°
78°
2
93°
75°
3
94°
74°
4
93°
76°
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 91° to 96°, with overnight lows between 73° and 78°. The average high for June is 94° with an average low of 75°. 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.
