S
M
T
W
T
F
S
26
79°
50°
27
66°
57°
28
63°
54°
29
61°
45°
30
64°
39°
1
57°
43°
2
57°
43°
3
72°
43°
4
73°
55°
5
57°
45°
6
59°
41°
7
66°
39°
8
66°
48°
9
77°
52°
10
70°
46°
11
72°
43°
12
81°
50°
13
72°
52°
14
72°
43°
15
79°
52°
16
73°
64°
17
82°
64°
18
75°
64°
19
N/A
20
66°
49°
21
70°
53°
22
67°
60°
23
75°
62°
24
77°
59°
25
79°
62°
26
78°
63°
27
78°
62°
28
81°
64°
29
80°
62°
30
82°
63°
31
82°
64°
1
80°
63°
2
82°
58°
3
82°
64°
4
79°
63°
5
80°
63°
6
79°
62°
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 66° to 82°, with overnight lows between 49° and 64°. The average high for May is 78° with an average low of 61°. 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.
