S
M
T
W
T
F
S
26
55°
36°
27
65°
34°
28
66°
35°
29
62°
42°
30
52°
46°
1
59°
43°
2
54°
46°
3
56°
38°
4
63°
36°
5
61°
46°
6
60°
53°
7
64°
49°
8
61°
46°
9
58°
47°
10
61°
51°
11
63°
41°
12
N/A
13
58°
51°
14
59°
52°
15
59°
46°
16
71°
55°
17
77°
54°
18
68°
56°
19
71°
61°
20
74°
53°
21
69°
54°
22
67°
54°
23
69°
55°
24
68°
55°
25
69°
52°
26
72°
57°
27
73°
57°
28
73°
58°
29
72°
59°
30
74°
59°
31
74°
58°
1
72°
57°
2
67°
55°
3
67°
55°
4
69°
59°
5
69°
60°
6
73°
59°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
May Weather in Stonington
Stonington's May 2026 forecast shows daily high temperatures ranging from 58° to 77°, with overnight lows between 46° and 61°. The average high for May is 69° with an average low of 56°. 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 Stonington. See also: June | July | August.
