S
M
T
W
T
F
S
28
75°
64°
29
80°
64°
30
73°
64°
1
68°
62°
2
N/A
3
80°
61°
4
82°
65°
5
89°
67°
6
82°
60°
7
84°
64°
8
84°
66°
9
87°
67°
10
86°
66°
11
84°
70°
12
85°
70°
13
86°
68°
14
85°
69°
15
79°
56°
16
82°
61°
17
74°
60°
18
81°
60°
19
81°
61°
20
82°
60°
21
82°
61°
22
81°
61°
23
80°
60°
24
82°
61°
25
82°
61°
26
81°
60°
27
82°
61°
28
82°
61°
29
80°
59°
30
74°
60°
31
75°
60°
1
78°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
July Weather in Great Falls
Great Falls's July 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 56° and 70°. The average high for July is 82° with an average low of 63°. 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 Great Falls. See also: August | September | October.