S
M
T
W
T
F
S
1
46°
23°
2
45°
22°
3
40°
22°
4
42°
26°
5
41°
36°
6
50°
38°
7
54°
36°
8
53°
35°
9
52°
29°
10
51°
26°
11
46°
26°
12
41°
27°
13
40°
21°
14
39°
19°
15
42°
20°
16
34°
27°
17
49°
20°
18
47°
19°
19
36°
20°
20
34°
22°
21
36°
19°
22
37°
24°
23
36°
22°
24
40°
30°
25
43°
29°
26
44°
22°
27
43°
27°
28
34°
20°
29
41°
20°
30
34°
19°
1
35°
25°
2
Hist. Avg.
37°
23°
3
Hist. Avg.
36°
22°
4
Hist. Avg.
36°
22°
5
Hist. Avg.
36°
22°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
November Weather in Alton
Alton's November 2026 forecast shows daily high temperatures ranging from 34° to 54°, with overnight lows between 19° and 38°. The average high for November is 42° with an average low of 25°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how November weather will actually feel in Alton. See also: December | January | February.