S
M
T
W
T
F
S
27
80°
58°
28
78°
58°
29
76°
58°
30
79°
57°
1
76°
57°
2
77°
56°
3
76°
56°
4
78°
54°
5
66°
54°
6
68°
56°
7
71°
51°
8
64°
43°
9
63°
48°
10
69°
52°
11
73°
53°
12
73°
52°
13
72°
53°
14
73°
53°
15
73°
51°
16
72°
47°
17
60°
49°
18
60°
50°
19
59°
50°
20
63°
49°
21
66°
42°
22
57°
38°
23
56°
40°
24
60°
43°
25
64°
49°
26
59°
36°
27
60°
39°
28
60°
48°
29
64°
47°
30
65°
51°
31
66°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Sangamon
Sangamon's October 2026 forecast shows daily high temperatures ranging from 56° to 80°, with overnight lows between 36° and 58°. The average high for October is 68° with an average low of 50°. 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 Sangamon. See also: November | December | January.