S
M
T
W
T
F
S
26
60°
41°
27
59°
41°
28
62°
43°
29
61°
41°
30
60°
40°
1
62°
45°
2
63°
42°
3
62°
41°
4
63°
47°
5
72°
50°
6
71°
45°
7
64°
45°
8
72°
52°
9
74°
53°
10
75°
48°
11
66°
46°
12
64°
44°
13
66°
48°
14
65°
50°
15
65°
51°
16
66°
51°
17
67°
52°
18
75°
45°
19
69°
49°
20
72°
48°
21
70°
47°
22
70°
46°
23
69°
47°
24
69°
46°
25
72°
49°
26
71°
50°
27
72°
50°
28
71°
49°
29
73°
54°
30
72°
51°
31
74°
50°
1
73°
57°
2
74°
53°
3
74°
52°
4
75°
58°
5
80°
54°
6
77°
53°
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 59° to 80°, with overnight lows between 40° and 58°. The average high for May is 69° 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.
