S
M
T
W
T
F
S
26
90°
72°
27
96°
74°
28
86°
63°
29
85°
57°
30
85°
55°
31
73°
63°
1
69°
64°
2
80°
57°
3
82°
59°
4
83°
64°
5
80°
62°
6
80°
59°
7
81°
62°
8
85°
65°
9
86°
67°
10
85°
64°
11
86°
65°
12
81°
63°
13
82°
64°
14
80°
65°
15
84°
73°
16
78°
66°
17
87°
67°
18
87°
68°
19
86°
66°
20
83°
66°
21
85°
65°
22
85°
67°
23
84°
66°
24
83°
66°
25
81°
65°
26
84°
65°
27
80°
62°
28
79°
65°
29
82°
63°
30
83°
64°
31
83°
64°
1
82°
63°
2
80°
64°
3
82°
63°
4
81°
63°
5
82°
62°
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 78° to 87°, with overnight lows between 57° and 73°. The average high for August is 83° with an average low of 64°. 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.
