S
M
T
W
T
F
S
26
92°
72°
27
92°
72°
28
91°
71°
29
92°
72°
30
93°
72°
31
92°
71°
1
92°
73°
2
94°
72°
3
92°
71°
4
92°
72°
5
93°
72°
6
93°
71°
7
91°
71°
8
90°
70°
9
92°
69°
10
86°
69°
11
88°
71°
12
91°
69°
13
90°
70°
14
91°
71°
15
90°
70°
16
92°
69°
17
91°
62°
18
86°
60°
19
81°
58°
20
80°
59°
21
81°
60°
22
81°
60°
23
82°
63°
24
81°
60°
25
83°
63°
26
86°
65°
27
87°
58°
28
82°
58°
29
82°
63°
30
85°
64°
31
87°
62°
1
88°
58°
2
81°
58°
3
80°
65°
4
86°
66°
5
83°
59°
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 80° to 94°, with overnight lows between 58° and 73°. The average high for August is 88° with an average low of 66°. 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.
