S
M
T
W
T
F
S
26
69°
45°
27
67°
49°
28
57°
47°
29
53°
40°
30
51°
37°
1
47°
37°
2
51°
41°
3
60°
49°
4
60°
47°
5
59°
45°
6
55°
46°
7
58°
44°
8
55°
43°
9
55°
46°
10
59°
48°
11
60°
46°
12
61°
47°
13
60°
43°
14
59°
43°
15
60°
44°
16
61°
44°
17
62°
45°
18
68°
55°
19
68°
49°
20
63°
46°
21
63°
47°
22
64°
48°
23
66°
53°
24
73°
57°
25
73°
55°
26
66°
50°
27
65°
50°
28
67°
54°
29
72°
57°
30
75°
58°
31
75°
59°
1
76°
60°
2
77°
60°
3
77°
59°
4
76°
56°
5
68°
53°
6
73°
60°
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 47° to 77°, with overnight lows between 37° and 60°. The average high for May is 64° 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 South Haven. See also: June | July | August.
