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
70°
44°
14
74°
38°
15
82°
64°
16
86°
64°
17
88°
69°
18
80°
63°
19
71°
47°
20
65°
48°
21
69°
51°
22
75°
56°
23
79°
58°
24
77°
60°
25
78°
61°
26
76°
60°
27
79°
63°
28
77°
56°
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 65° to 88°, with overnight lows between 47° and 69°. The average high for May is 76° with an average low of 59°. 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.
