S
M
T
W
T
F
S
26
69°
43°
27
60°
44°
28
52°
38°
29
57°
42°
30
53°
38°
1
53°
36°
2
66°
34°
3
71°
48°
4
66°
42°
5
53°
35°
6
52°
36°
7
62°
32°
8
75°
37°
9
63°
42°
10
66°
37°
11
73°
33°
12
75°
58°
13
75°
46°
14
80°
50°
15
89°
52°
16
82°
51°
17
82°
60°
18
64°
51°
19
52°
42°
20
58°
37°
21
64°
47°
22
61°
48°
23
71°
52°
24
84°
50°
25
88°
61°
26
88°
66°
27
88°
63°
28
89°
64°
29
N/A
30
76°
61°
31
78°
60°
1
83°
60°
2
85°
61°
3
86°
64°
4
81°
62°
5
80°
61°
6
79°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Delavan
Delavan's May 2026 forecast shows daily high temperatures ranging from 76° to 86°, with overnight lows between 59° and 64°. The average high for May is 81° with an average low of 61°. 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 Delavan. See also: June | July | August.
