S
M
T
W
T
F
S
26
62°
41°
27
72°
42°
28
71°
44°
29
66°
52°
30
56°
43°
1
56°
39°
2
53°
40°
3
55°
43°
4
61°
47°
5
66°
51°
6
63°
49°
7
63°
47°
8
61°
46°
9
61°
47°
10
60°
48°
11
64°
45°
12
65°
49°
13
65°
48°
14
66°
46°
15
64°
45°
16
63°
46°
17
61°
45°
18
64°
45°
19
69°
51°
20
67°
47°
21
66°
46°
22
67°
47°
23
66°
46°
24
66°
49°
25
68°
56°
26
72°
51°
27
67°
49°
28
68°
49°
29
70°
54°
30
77°
57°
31
77°
54°
1
75°
56°
2
78°
60°
3
79°
60°
4
79°
58°
5
78°
52°
6
71°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in West Hartford
West Hartford's May 2026 forecast shows daily high temperatures ranging from 53° to 79°, with overnight lows between 39° and 60°. The average high for May is 67° with an average low of 49°. 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 West Hartford. See also: June | July | August.