S
M
T
W
T
F
S
27
80°
61°
28
78°
57°
29
77°
59°
30
77°
62°
1
78°
61°
2
77°
54°
3
76°
53°
4
74°
53°
5
74°
54°
6
75°
53°
7
74°
53°
8
75°
56°
9
74°
54°
10
75°
52°
11
73°
53°
12
74°
52°
13
73°
55°
14
77°
57°
15
78°
57°
16
Hist. Avg.
74°
51°
17
Hist. Avg.
74°
50°
18
Hist. Avg.
73°
50°
19
Hist. Avg.
73°
50°
20
Hist. Avg.
73°
50°
21
Hist. Avg.
73°
49°
22
Hist. Avg.
72°
49°
23
Hist. Avg.
72°
48°
24
Hist. Avg.
72°
48°
25
Hist. Avg.
72°
48°
26
Hist. Avg.
71°
48°
27
Hist. Avg.
71°
47°
28
Hist. Avg.
71°
47°
29
Hist. Avg.
70°
46°
30
Hist. Avg.
70°
46°
31
Hist. Avg.
70°
46°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Summerville
Summerville's October 2026 forecast shows daily high temperatures ranging from 73° to 80°, with overnight lows between 52° and 62°. The average high for October is 76° with an average low of 56°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Summerville. See also: November | December | January.