S
M
T
W
T
F
S
27
67°
44°
28
Hist. Avg.
71°
48°
29
Hist. Avg.
70°
48°
30
Hist. Avg.
70°
48°
1
Hist. Avg.
69°
47°
2
Hist. Avg.
69°
47°
3
Hist. Avg.
68°
46°
4
Hist. Avg.
68°
46°
5
Hist. Avg.
68°
46°
6
Hist. Avg.
67°
45°
7
Hist. Avg.
67°
45°
8
Hist. Avg.
66°
45°
9
Hist. Avg.
66°
44°
10
Hist. Avg.
65°
44°
11
Hist. Avg.
65°
44°
12
Hist. Avg.
64°
43°
13
Hist. Avg.
64°
43°
14
Hist. Avg.
63°
42°
15
Hist. Avg.
63°
42°
16
Hist. Avg.
62°
42°
17
Hist. Avg.
62°
41°
18
Hist. Avg.
61°
41°
19
Hist. Avg.
61°
41°
20
Hist. Avg.
60°
40°
21
Hist. Avg.
60°
40°
22
Hist. Avg.
60°
40°
23
Hist. Avg.
59°
39°
24
Hist. Avg.
58°
39°
25
Hist. Avg.
58°
39°
26
Hist. Avg.
58°
38°
27
Hist. Avg.
57°
38°
28
Hist. Avg.
56°
38°
29
Hist. Avg.
56°
37°
30
Hist. Avg.
56°
37°
31
Hist. Avg.
55°
36°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Belvidere
Belvidere's October 2026 forecast shows daily high temperatures ranging from 67° to 67°, with overnight lows between 44° and 44°. The average high for October is 67° with an average low of 44°. 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.