S
M
T
W
T
F
S
26
59°
40°
27
58°
40°
28
61°
42°
29
61°
40°
30
59°
39°
1
61°
44°
2
62°
41°
3
61°
40°
4
62°
46°
5
71°
49°
6
70°
44°
7
63°
45°
8
71°
51°
9
73°
52°
10
74°
47°
11
65°
45°
12
63°
43°
13
65°
47°
14
64°
49°
15
64°
50°
16
65°
50°
17
67°
51°
18
74°
44°
19
67°
48°
20
71°
47°
21
69°
46°
22
68°
45°
23
67°
46°
24
68°
45°
25
70°
47°
26
70°
48°
27
71°
48°
28
70°
47°
29
71°
53°
30
71°
50°
31
73°
49°
1
72°
56°
2
73°
52°
3
73°
51°
4
74°
57°
5
79°
53°
6
76°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in North Haven
North Haven's May 2026 forecast shows daily high temperatures ranging from 58° to 79°, with overnight lows between 39° and 57°. The average high for May is 68° with an average low of 47°. 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 North Haven. See also: June | July | August.