S
M
T
W
T
F
S
28
69°
45°
29
71°
44°
30
78°
51°
1
81°
53°
2
81°
53°
3
83°
54°
4
83°
54°
5
80°
51°
6
82°
53°
7
83°
53°
8
85°
48°
9
82°
53°
10
84°
54°
11
86°
55°
12
88°
56°
13
87°
54°
14
88°
56°
15
89°
56°
16
90°
57°
17
90°
57°
18
92°
50°
19
86°
47°
20
81°
50°
21
88°
54°
22
90°
57°
23
91°
55°
24
92°
57°
25
91°
56°
26
92°
54°
27
89°
53°
28
87°
52°
29
88°
55°
30
92°
54°
31
88°
49°
1
81°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Great Falls
Great Falls's July 2026 forecast shows daily high temperatures ranging from 69° to 92°, with overnight lows between 44° and 57°. The average high for July is 85° with an average low of 53°. 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.