S
M
T
W
T
F
S
28
55°
48°
29
57°
51°
30
72°
51°
1
73°
50°
2
77°
52°
3
81°
53°
4
76°
49°
5
83°
56°
6
89°
59°
7
88°
57°
8
87°
56°
9
88°
57°
10
89°
65°
11
88°
60°
12
90°
61°
13
82°
60°
14
84°
61°
15
83°
61°
16
82°
60°
17
86°
61°
18
82°
61°
19
85°
60°
20
90°
61°
21
91°
61°
22
91°
60°
23
90°
61°
24
87°
61°
25
91°
58°
26
83°
54°
27
86°
60°
28
92°
60°
29
93°
61°
30
92°
63°
31
91°
62°
1
92°
61°
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 55° to 93°, with overnight lows between 48° and 65°. The average high for July is 84° with an average low of 58°. 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.
