S
M
T
W
T
F
S
26
61°
36°
27
71°
35°
28
67°
36°
29
64°
40°
30
56°
47°
1
64°
38°
2
58°
47°
3
57°
36°
4
70°
33°
5
75°
43°
6
66°
54°
7
63°
39°
8
61°
40°
9
63°
46°
10
67°
52°
11
62°
45°
12
65°
37°
13
67°
42°
14
63°
51°
15
68°
50°
16
77°
44°
17
89°
52°
18
87°
57°
19
90°
62°
20
90°
63°
21
66°
52°
22
68°
50°
23
57°
49°
24
58°
48°
25
77°
54°
26
81°
48°
27
84°
54°
28
75°
53°
29
75°
51°
30
60°
44°
31
74°
54°
1
70°
47°
2
69°
49°
3
71°
52°
4
78°
57°
5
79°
59°
6
77°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Southington
Southington's May 2026 forecast shows daily high temperatures ranging from 60° to 79°, with overnight lows between 44° and 59°. The average high for May is 73° with an average low of 52°. 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 Southington. See also: June | July | August.
