S
M
T
W
T
F
S
26
82°
60°
27
82°
58°
28
74°
66°
29
73°
64°
30
78°
63°
31
82°
58°
1
86°
58°
2
76°
70°
3
75°
64°
4
81°
56°
5
87°
58°
6
84°
66°
7
81°
65°
8
83°
69°
9
78°
59°
10
81°
59°
11
79°
61°
12
80°
58°
13
79°
61°
14
80°
56°
15
77°
51°
16
82°
50°
17
80°
64°
18
78°
58°
19
78°
56°
20
70°
52°
21
78°
48°
22
83°
55°
23
76°
58°
24
71°
55°
25
72°
56°
26
78°
55°
27
81°
63°
28
70°
51°
29
76°
50°
30
71°
58°
31
70°
61°
1
79°
66°
2
83°
65°
3
80°
65°
4
76°
60°
5
74°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Hannibal
Hannibal's August 2026 forecast shows daily high temperatures ranging from ° to °, with overnight lows between ° and °. The average high for August is ° with an average low of °. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how August weather will actually feel in Hannibal. See also: September | October | November.
