S
M
T
W
T
F
S
26
93°
76°
27
95°
77°
28
88°
75°
29
84°
69°
30
83°
62°
31
81°
69°
1
78°
66°
2
81°
62°
3
83°
62°
4
84°
67°
5
75°
62°
6
80°
61°
7
82°
66°
8
85°
69°
9
89°
70°
10
88°
69°
11
83°
66°
12
82°
65°
13
85°
63°
14
80°
65°
15
93°
75°
16
83°
69°
17
89°
70°
18
88°
70°
19
89°
68°
20
87°
67°
21
87°
68°
22
86°
69°
23
88°
68°
24
86°
67°
25
86°
66°
26
83°
64°
27
84°
64°
28
86°
66°
29
85°
65°
30
86°
66°
31
86°
65°
1
87°
66°
2
86°
66°
3
87°
65°
4
86°
65°
5
85°
64°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Iowa City
Iowa City's August 2026 forecast shows daily high temperatures ranging from 75° to 93°, with overnight lows between 61° and 75°. The average high for August is 85° 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 Iowa City. See also: September | October | November.
