S
M
T
W
T
F
S
26
79°
59°
27
82°
59°
28
84°
65°
29
87°
59°
30
88°
58°
31
82°
57°
1
80°
58°
2
80°
56°
3
81°
54°
4
79°
56°
5
80°
59°
6
80°
60°
7
81°
64°
8
85°
58°
9
86°
57°
10
84°
58°
11
87°
67°
12
87°
58°
13
89°
55°
14
82°
64°
15
82°
64°
16
87°
59°
17
83°
55°
18
79°
55°
19
78°
54°
20
79°
56°
21
81°
53°
22
77°
54°
23
78°
56°
24
80°
54°
25
78°
62°
26
82°
62°
27
85°
61°
28
85°
52°
29
83°
58°
30
82°
55°
31
78°
54°
1
75°
55°
2
75°
50°
3
76°
51°
4
75°
58°
5
75°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Rock Rapids
Rock Rapids's August 2026 forecast shows daily high temperatures ranging from 75° to 89°, with overnight lows between 50° and 67°. The average high for August is 81° with an average low of 58°. 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 Rock Rapids. See also: September | October | November.
