S
M
T
W
T
F
S
26
81°
56°
27
83°
61°
28
75°
63°
29
79°
63°
30
78°
65°
31
84°
62°
1
84°
61°
2
81°
71°
3
82°
63°
4
82°
56°
5
82°
62°
6
88°
73°
7
90°
71°
8
84°
69°
9
86°
69°
10
83°
66°
11
83°
67°
12
83°
64°
13
84°
67°
14
83°
63°
15
81°
61°
16
69°
61°
17
83°
66°
18
80°
64°
19
82°
59°
20
75°
62°
21
77°
54°
22
76°
61°
23
78°
60°
24
75°
54°
25
76°
54°
26
80°
55°
27
80°
62°
28
80°
61°
29
75°
51°
30
78°
56°
31
74°
65°
1
85°
68°
2
73°
68°
3
84°
67°
4
84°
68°
5
78°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Belvidere
Belvidere'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 Belvidere. See also: September | October | November.
