S
M
T
W
T
F
S
28
81°
67°
29
86°
65°
30
82°
67°
1
84°
65°
2
85°
66°
3
86°
67°
4
82°
70°
5
84°
70°
6
80°
62°
7
81°
63°
8
81°
64°
9
82°
68°
10
87°
71°
11
87°
71°
12
86°
70°
13
84°
69°
14
84°
70°
15
85°
66°
16
85°
70°
17
86°
69°
18
87°
68°
19
89°
71°
20
90°
68°
21
83°
64°
22
84°
65°
23
88°
68°
24
90°
71°
25
89°
71°
26
90°
70°
27
89°
70°
28
83°
69°
29
89°
71°
30
90°
71°
31
90°
70°
1
84°
70°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Helena
Helena's July 2026 forecast shows daily high temperatures ranging from 80° to 90°, with overnight lows between 62° and 71°. The average high for July is 86° with an average low of 68°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how July weather will actually feel in Helena. See also: August | September | October.
