S
M
T
W
T
F
S
26
54°
40°
27
48°
36°
28
56°
35°
29
61°
37°
30
64°
38°
1
66°
42°
2
72°
48°
3
76°
52°
4
69°
49°
5
62°
45°
6
68°
52°
7
79°
54°
8
81°
53°
9
75°
52°
10
79°
60°
11
74°
56°
12
77°
57°
13
78°
57°
14
73°
58°
15
64°
45°
16
65°
42°
17
66°
45°
18
67°
46°
19
65°
44°
20
65°
43°
21
66°
44°
22
67°
46°
23
66°
44°
24
67°
45°
25
67°
44°
26
68°
45°
27
69°
45°
28
76°
52°
29
80°
56°
30
81°
58°
31
81°
57°
1
80°
57°
2
80°
51°
3
82°
55°
4
83°
58°
5
83°
59°
6
82°
58°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in West Haven
West Haven's May 2026 forecast shows daily high temperatures ranging from 62° to 83°, with overnight lows between 42° and 60°. The average high for May is 73° with an average low of 51°. 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 Haven. See also: June | July | August.
