S
M
T
W
T
F
S
26
61°
36°
27
71°
35°
28
67°
36°
29
64°
40°
30
56°
47°
1
64°
38°
2
58°
47°
3
57°
36°
4
70°
33°
5
75°
43°
6
66°
54°
7
66°
43°
8
62°
42°
9
58°
52°
10
73°
48°
11
59°
40°
12
62°
41°
13
58°
45°
14
64°
46°
15
66°
51°
16
68°
50°
17
69°
51°
18
72°
52°
19
71°
52°
20
70°
49°
21
66°
46°
22
66°
46°
23
67°
47°
24
67°
50°
25
70°
54°
26
75°
54°
27
70°
53°
28
72°
50°
29
68°
48°
30
71°
55°
31
76°
56°
1
73°
56°
2
72°
55°
3
74°
54°
4
77°
57°
5
77°
58°
6
78°
57°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wallingford
Wallingford's May 2026 forecast shows daily high temperatures ranging from 58° to 78°, with overnight lows between 40° and 58°. The average high for May is 69° with an average low of 50°. 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 Wallingford. See also: June | July | August.
