S
M
T
W
T
F
S
31
84°
64°
1
85°
63°
2
82°
58°
3
85°
54°
4
87°
57°
5
87°
59°
6
90°
71°
7
90°
71°
8
87°
75°
9
92°
74°
10
93°
77°
11
92°
68°
12
83°
66°
13
83°
62°
14
80°
57°
15
77°
56°
16
80°
54°
17
84°
57°
18
83°
62°
19
83°
58°
20
87°
63°
21
85°
65°
22
73°
60°
23
80°
58°
24
82°
57°
25
83°
66°
26
77°
70°
27
83°
70°
28
91°
72°
29
95°
74°
30
96°
72°
1
96°
73°
2
95°
73°
3
96°
72°
4
93°
71°
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 77° to 96°, with overnight lows between 70° and 74°. The average high for June is 91° with an average low of 72°. 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.
