S
M
T
W
T
F
S
26
88°
67°
27
89°
74°
28
84°
69°
29
79°
68°
30
80°
67°
31
82°
69°
1
81°
70°
2
88°
70°
3
87°
69°
4
87°
66°
5
84°
69°
6
88°
70°
7
86°
70°
8
81°
69°
9
85°
66°
10
80°
62°
11
82°
68°
12
81°
69°
13
86°
67°
14
80°
61°
15
79°
62°
16
80°
64°
17
79°
66°
18
80°
63°
19
84°
64°
20
85°
67°
21
84°
64°
22
79°
64°
23
86°
67°
24
86°
66°
25
88°
64°
26
88°
65°
27
87°
57°
28
78°
56°
29
75°
55°
30
78°
60°
31
80°
62°
1
79°
55°
2
83°
53°
3
76°
52°
4
74°
53°
5
74°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Coralville
Coralville's August 2026 forecast shows daily high temperatures ranging from 74° to 89°, with overnight lows between 52° and 74°. The average high for August is 82° 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 Coralville. See also: September | October | November.
