S
M
T
W
T
F
S
26
76°
42°
27
74°
55°
28
64°
49°
29
61°
39°
30
58°
34°
1
56°
34°
2
60°
34°
3
73°
47°
4
83°
40°
5
56°
46°
6
57°
35°
7
65°
29°
8
69°
44°
9
76°
50°
10
69°
37°
11
68°
41°
12
83°
47°
13
69°
44°
14
75°
56°
15
82°
61°
16
82°
62°
17
84°
67°
18
81°
57°
19
69°
50°
20
69°
53°
21
67°
51°
22
73°
54°
23
72°
53°
24
74°
58°
25
78°
59°
26
76°
55°
27
74°
61°
28
77°
60°
29
73°
58°
30
71°
57°
31
72°
55°
1
72°
53°
2
73°
53°
3
72°
58°
4
75°
64°
5
82°
65°
6
83°
65°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Bettendorf
Bettendorf's May 2026 forecast shows daily high temperatures ranging from 67° to 84°, with overnight lows between 44° and 67°. The average high for May is 75° with an average low of 57°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Bettendorf. See also: June | July | August.
