S
M
T
W
T
F
S
26
87°
71°
27
88°
72°
28
89°
71°
29
88°
71°
30
87°
69°
31
78°
68°
1
81°
70°
2
88°
72°
3
89°
72°
4
89°
71°
5
90°
72°
6
88°
71°
7
86°
68°
8
86°
63°
9
85°
61°
10
81°
64°
11
80°
62°
12
81°
61°
13
79°
63°
14
80°
61°
15
79°
68°
16
81°
66°
17
85°
63°
18
79°
61°
19
80°
60°
20
83°
60°
21
84°
61°
22
85°
67°
23
85°
67°
24
86°
69°
25
88°
69°
26
88°
66°
27
86°
59°
28
81°
60°
29
78°
59°
30
77°
58°
31
78°
57°
1
78°
58°
2
76°
57°
3
76°
56°
4
78°
60°
5
79°
60°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
August Weather in Bettendorf
Bettendorf's August 2026 forecast shows daily high temperatures ranging from 76° to 90°, with overnight lows between 56° and 72°. The average high for August is 83° with an average low of 65°. 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 Bettendorf. See also: September | October | November.
