S
M
T
W
T
F
S
26
58°
38°
27
58°
38°
28
59°
39°
29
60°
38°
30
58°
38°
1
58°
41°
2
61°
38°
3
60°
39°
4
62°
44°
5
70°
47°
6
67°
41°
7
62°
42°
8
71°
49°
9
73°
50°
10
73°
45°
11
64°
42°
12
63°
42°
13
64°
45°
14
64°
46°
15
63°
49°
16
64°
50°
17
67°
50°
18
74°
44°
19
68°
46°
20
70°
46°
21
69°
45°
22
68°
45°
23
67°
46°
24
68°
44°
25
70°
46°
26
70°
48°
27
71°
48°
28
70°
47°
29
71°
52°
30
71°
50°
31
72°
49°
1
72°
56°
2
73°
51°
3
73°
50°
4
74°
57°
5
78°
53°
6
77°
52°
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 58° to 78°, with overnight lows between 38° and 57°. The average high for May is 67° with an average low of 46°. 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.
