S
M
T
W
T
F
S
26
54°
42°
27
55°
43°
28
55°
39°
29
55°
33°
30
54°
32°
1
55°
37°
2
68°
35°
3
70°
43°
4
60°
42°
5
51°
34°
6
46°
29°
7
60°
28°
8
71°
35°
9
60°
47°
10
40°
36°
11
68°
34°
12
68°
51°
13
73°
42°
14
79°
45°
15
85°
55°
16
77°
49°
17
70°
52°
18
60°
51°
19
54°
43°
20
62°
37°
21
67°
39°
22
57°
50°
23
64°
47°
24
84°
44°
25
88°
59°
26
89°
65°
27
91°
64°
28
86°
60°
29
87°
65°
30
82°
61°
31
77°
63°
1
80°
59°
2
85°
61°
3
87°
63°
4
80°
61°
5
78°
56°
6
77°
58°
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 77° to 87°, with overnight lows between 56° and 65°. The average high for May is 81° with an average low of 61°. 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.
