S
M
T
W
T
F
S
28
92°
77°
29
92°
79°
30
93°
79°
1
93°
75°
2
91°
73°
3
92°
74°
4
93°
71°
5
88°
69°
6
87°
70°
7
87°
71°
8
89°
70°
9
89°
69°
10
90°
70°
11
91°
70°
12
93°
69°
13
95°
70°
14
87°
69°
15
83°
66°
16
84°
66°
17
88°
70°
18
91°
73°
19
93°
73°
20
92°
72°
21
91°
72°
22
92°
71°
23
93°
73°
24
92°
72°
25
92°
72°
26
91°
72°
27
91°
71°
28
92°
72°
29
90°
70°
30
91°
71°
31
90°
71°
1
88°
67°
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 83° to 95°, with overnight lows between 66° and 75°. The average high for July is 90° with an average low of 71°. 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.
