S
M
T
W
T
F
S
27
81°
61°
28
83°
62°
29
82°
62°
30
82°
61°
1
79°
58°
2
79°
62°
3
83°
62°
4
83°
61°
5
82°
61°
6
82°
60°
7
81°
62°
8
81°
59°
9
75°
57°
10
76°
56°
11
78°
58°
12
75°
59°
13
71°
58°
14
75°
58°
15
74°
57°
16
78°
56°
17
79°
57°
18
78°
56°
19
73°
56°
20
77°
57°
21
77°
53°
22
76°
45°
23
65°
43°
24
66°
43°
25
67°
48°
26
76°
43°
27
68°
43°
28
66°
48°
29
68°
49°
30
72°
50°
31
74°
51°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sumter
Sumter's October 2026 forecast shows daily high temperatures ranging from 65° to 83°, with overnight lows between 43° and 62°. The average high for October is 76° with an average low of 55°. 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 Sumter. See also: November | December | January.
