S
M
T
W
T
F
S
26
59°
37°
27
70°
41°
28
69°
47°
29
62°
52°
30
59°
42°
1
56°
40°
2
55°
38°
3
57°
40°
4
61°
44°
5
64°
46°
6
65°
48°
7
67°
45°
8
66°
45°
9
63°
46°
10
63°
45°
11
64°
43°
12
64°
47°
13
65°
47°
14
65°
44°
15
63°
44°
16
62°
45°
17
61°
44°
18
63°
44°
19
69°
51°
20
68°
47°
21
65°
45°
22
65°
46°
23
66°
45°
24
67°
48°
25
70°
54°
26
74°
50°
27
67°
48°
28
67°
48°
29
70°
54°
30
76°
56°
31
76°
53°
1
74°
55°
2
77°
58°
3
79°
59°
4
79°
57°
5
78°
52°
6
71°
51°
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 55° to 79°, with overnight lows between 37° and 59°. The average high for May is 67° with an average low of 47°. 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.
