S
M
T
W
T
F
S
26
65°
44°
27
59°
40°
28
61°
44°
29
62°
45°
30
69°
48°
1
61°
44°
2
59°
43°
3
60°
41°
4
62°
42°
5
65°
45°
6
68°
49°
7
73°
47°
8
74°
50°
9
74°
50°
10
75°
54°
11
74°
50°
12
69°
45°
13
62°
44°
14
62°
43°
15
64°
44°
16
66°
45°
17
69°
47°
18
65°
48°
19
66°
46°
20
69°
46°
21
78°
50°
22
79°
56°
23
69°
53°
24
69°
48°
25
76°
51°
26
76°
48°
27
82°
54°
28
80°
57°
29
80°
53°
30
83°
59°
31
84°
60°
1
84°
56°
2
85°
62°
3
86°
62°
4
86°
60°
5
85°
61°
6
85°
62°
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 59° to 86°, with overnight lows between 40° and 62°. The average high for May is 72° with an average low of 50°. 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.
