S
M
T
W
T
F
S
26
69°
45°
27
67°
49°
28
62°
50°
29
53°
41°
30
50°
39°
1
47°
39°
2
50°
33°
3
60°
43°
4
77°
51°
5
56°
45°
6
56°
35°
7
57°
41°
8
64°
36°
9
70°
41°
10
60°
35°
11
60°
36°
12
66°
47°
13
53°
43°
14
57°
45°
15
68°
57°
16
72°
56°
17
77°
66°
18
80°
63°
19
69°
51°
20
62°
49°
21
68°
53°
22
75°
58°
23
76°
58°
24
75°
59°
25
76°
52°
26
75°
59°
27
75°
59°
28
76°
60°
29
75°
59°
30
74°
57°
31
67°
54°
1
67°
51°
2
68°
59°
3
73°
60°
4
73°
60°
5
70°
59°
6
71°
54°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in South Haven
South Haven's May 2026 forecast shows daily high temperatures ranging from 53° to 80°, with overnight lows between 43° and 66°. The average high for May is 71° with an average low of 56°. 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 South Haven. See also: June | July | August.
