S
M
T
W
T
F
S
26
67°
34°
27
74°
32°
28
72°
40°
29
69°
37°
30
54°
43°
1
59°
43°
2
55°
36°
3
55°
40°
4
65°
45°
5
74°
55°
6
67°
49°
7
61°
39°
8
57°
37°
9
60°
44°
10
63°
44°
11
63°
43°
12
64°
45°
13
61°
46°
14
64°
45°
15
67°
45°
16
68°
46°
17
66°
43°
18
67°
52°
19
71°
52°
20
74°
51°
21
75°
53°
22
74°
48°
23
67°
48°
24
69°
49°
25
68°
46°
26
69°
48°
27
69°
51°
28
68°
53°
29
73°
55°
30
74°
52°
31
74°
48°
1
70°
47°
2
69°
48°
3
70°
48°
4
70°
49°
5
71°
49°
6
71°
50°
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 55° to 75°, with overnight lows between 36° and 55°. 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 Wilton. See also: June | July | August.
