S
M
T
W
T
F
S
28
91°
72°
29
93°
70°
30
93°
70°
1
91°
72°
2
91°
66°
3
95°
68°
4
95°
70°
5
93°
72°
6
91°
73°
7
91°
72°
8
95°
72°
9
91°
70°
10
91°
70°
11
91°
70°
12
91°
72°
13
86°
70°
14
86°
70°
15
88°
72°
16
91°
72°
17
93°
72°
18
91°
72°
19
91°
70°
20
93°
72°
21
90°
70°
22
90°
72°
23
95°
73°
24
95°
75°
25
91°
74°
26
91°
72°
27
93°
71°
28
97°
74°
29
94°
72°
30
92°
70°
31
91°
71°
1
87°
69°
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 87° to 97°, with overnight lows between 69° and 75°. The average high for July is 93° 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 July weather will actually feel in Helena. See also: August | September | October.
