S
M
T
W
T
F
S
27
75°
57°
28
N/A
29
85°
51°
30
91°
67°
1
91°
65°
2
74°
54°
3
76°
47°
4
82°
45°
5
77°
45°
6
78°
46°
7
90°
53°
8
85°
49°
9
89°
52°
10
82°
56°
11
87°
49°
12
93°
64°
13
92°
69°
14
80°
69°
15
79°
54°
16
54°
47°
17
56°
39°
18
64°
38°
19
68°
38°
20
73°
46°
21
75°
44°
22
77°
46°
23
76°
48°
24
76°
51°
25
76°
50°
26
77°
49°
27
71°
50°
28
77°
51°
29
81°
53°
30
77°
52°
31
71°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Jerseyville
Jerseyville's October 2026 forecast shows daily high temperatures ranging from 71° to 81°, with overnight lows between 49° and 53°. The average high for October is 76° with an average low of 51°. 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 Jerseyville. See also: November | December | January.