S
M
T
W
T
F
S
28
76°
62°
29
82°
58°
30
87°
65°
1
89°
71°
2
90°
70°
3
91°
66°
4
86°
66°
5
79°
66°
6
77°
65°
7
77°
64°
8
82°
64°
9
83°
62°
10
81°
62°
11
80°
61°
12
79°
58°
13
79°
59°
14
79°
58°
15
80°
58°
16
81°
59°
17
80°
56°
18
77°
53°
19
81°
59°
20
76°
53°
21
74°
53°
22
75°
52°
23
75°
53°
24
76°
57°
25
77°
59°
26
77°
59°
27
78°
58°
28
81°
60°
29
82°
60°
30
78°
59°
31
79°
60°
1
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
July Weather in Summerville
Summerville's July 2026 forecast shows daily high temperatures ranging from 74° to 86°, with overnight lows between 52° and 66°. The average high for July is 79° with an average low of 59°. 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 Summerville. See also: August | September | October.