S
M
T
W
T
F
S
27
75°
56°
28
81°
53°
29
83°
48°
30
92°
64°
1
91°
67°
2
74°
47°
3
75°
46°
4
77°
48°
5
72°
43°
6
73°
46°
7
80°
51°
8
81°
52°
9
80°
54°
10
81°
51°
11
82°
55°
12
73°
49°
13
74°
48°
14
72°
46°
15
64°
37°
16
71°
51°
17
73°
53°
18
72°
52°
19
65°
46°
20
60°
43°
21
58°
40°
22
59°
45°
23
70°
51°
24
71°
50°
25
70°
50°
26
65°
43°
27
60°
41°
28
64°
48°
29
63°
43°
30
62°
45°
31
67°
48°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Bethalto
Bethalto's October 2026 forecast shows daily high temperatures ranging from 58° to 82°, with overnight lows between 37° and 55°. The average high for October is 70° with an average low of 47°. 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 Bethalto. See also: November | December | January.
