S
M
T
W
T
F
S
26
63°
39°
27
66°
45°
28
54°
39°
29
59°
42°
30
61°
44°
1
70°
46°
2
64°
44°
3
56°
43°
4
59°
44°
5
59°
45°
6
58°
44°
7
58°
45°
8
59°
46°
9
58°
45°
10
55°
45°
11
59°
47°
12
57°
46°
13
56°
48°
14
57°
49°
15
60°
50°
16
61°
49°
17
58°
44°
18
62°
51°
19
64°
52°
20
64°
51°
21
63°
52°
22
65°
51°
23
63°
50°
24
64°
51°
25
63°
51°
26
59°
49°
27
59°
46°
28
60°
48°
29
59°
46°
30
63°
51°
31
65°
52°
1
65°
52°
2
64°
51°
3
66°
52°
4
61°
52°
5
61°
51°
6
62°
49°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Wilton
Wilton's May 2026 forecast shows daily high temperatures ranging from 54° to 70°, with overnight lows between 39° and 52°. The average high for May is 61° with an average low of 48°. 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 Wilton. See also: June | July | August.
