S
M
T
W
T
F
S
27
70°
55°
28
72°
55°
29
69°
52°
30
65°
53°
1
68°
55°
2
70°
54°
3
65°
52°
4
68°
53°
5
66°
53°
6
63°
54°
7
67°
55°
8
68°
51°
9
57°
50°
10
58°
48°
11
56°
46°
12
60°
51°
13
66°
50°
14
66°
50°
15
65°
49°
16
65°
49°
17
63°
46°
18
53°
43°
19
54°
47°
20
59°
50°
21
62°
44°
22
56°
39°
23
49°
39°
24
50°
43°
25
52°
47°
26
61°
39°
27
52°
34°
28
51°
38°
29
56°
44°
30
59°
46°
31
60°
45°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Hannibal
Hannibal's October 2026 forecast shows daily high temperatures ranging from 49° to 72°, with overnight lows between 34° and 55°. The average high for October is 61° with an average low of 48°. 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 Hannibal. See also: November | December | January.
