S
M
T
W
T
F
S
26
68°
41°
27
70°
49°
28
57°
47°
29
50°
41°
30
49°
31°
1
46°
33°
2
48°
42°
3
54°
46°
4
64°
45°
5
54°
39°
6
51°
39°
7
47°
38°
8
54°
44°
9
56°
43°
10
59°
47°
11
57°
45°
12
57°
46°
13
58°
45°
14
57°
48°
15
61°
45°
16
60°
43°
17
62°
52°
18
65°
52°
19
63°
53°
20
68°
54°
21
69°
54°
22
66°
53°
23
66°
48°
24
62°
45°
25
63°
51°
26
65°
55°
27
68°
55°
28
66°
52°
29
65°
49°
30
66°
51°
31
66°
47°
1
67°
51°
2
67°
52°
3
66°
49°
4
67°
48°
5
67°
49°
6
68°
52°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grand Haven
Grand Haven's May 2026 forecast shows daily high temperatures ranging from 46° to 69°, with overnight lows between 33° and 55°. The average high for May is 61° with an average low of 48°. 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 Grand Haven. See also: June | July | August.
