S
M
T
W
T
F
S
26
86°
67°
27
87°
68°
28
87°
67°
29
86°
66°
30
85°
65°
31
82°
65°
1
80°
66°
2
87°
68°
3
87°
67°
4
86°
67°
5
85°
65°
6
83°
67°
7
84°
64°
8
85°
57°
9
80°
54°
10
76°
62°
11
79°
56°
12
76°
54°
13
76°
56°
14
77°
62°
15
77°
62°
16
76°
56°
17
76°
55°
18
79°
56°
19
81°
60°
20
83°
60°
21
82°
61°
22
82°
62°
23
81°
59°
24
82°
64°
25
79°
63°
26
82°
59°
27
82°
53°
28
73°
53°
29
75°
52°
30
74°
53°
31
73°
52°
1
72°
53°
2
72°
51°
3
74°
53°
4
79°
56°
5
73°
56°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rockford
Rockford's August 2026 forecast shows daily high temperatures ranging from 72° to 87°, with overnight lows between 51° and 68°. The average high for August is 80° with an average low of 60°. 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 Rockford. See also: September | October | November.
