S
M
T
W
T
F
S
27
73°
53°
28
75°
50°
29
69°
44°
30
71°
52°
1
71°
48°
2
67°
45°
3
70°
51°
4
74°
51°
5
74°
50°
6
72°
52°
7
72°
50°
8
68°
49°
9
68°
50°
10
72°
51°
11
72°
48°
12
70°
41°
13
59°
39°
14
58°
36°
15
57°
35°
16
57°
35°
17
58°
41°
18
62°
37°
19
56°
36°
20
56°
34°
21
55°
35°
22
56°
34°
23
66°
47°
24
68°
42°
25
69°
38°
26
62°
32°
27
55°
30°
28
53°
29°
29
50°
30°
30
52°
37°
31
54°
38°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Belvidere
Belvidere's October 2026 forecast shows daily high temperatures ranging from 50° to 75°, with overnight lows between 29° and 53°. The average high for October is 64° with an average low of 42°. 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 Belvidere. See also: November | December | January.
