S
M
T
W
T
F
S
26
68°
41°
27
70°
49°
28
57°
47°
29
50°
41°
30
49°
31°
1
48°
38°
2
49°
29°
3
57°
44°
4
72°
45°
5
58°
37°
6
54°
36°
7
52°
37°
8
60°
30°
9
59°
39°
10
54°
38°
11
54°
38°
12
57°
44°
13
52°
41°
14
60°
46°
15
62°
49°
16
67°
51°
17
70°
52°
18
69°
52°
19
71°
53°
20
69°
54°
21
69°
54°
22
70°
49°
23
66°
53°
24
69°
55°
25
74°
56°
26
74°
57°
27
75°
57°
28
75°
56°
29
74°
57°
30
72°
55°
31
67°
52°
1
66°
49°
2
67°
56°
3
71°
58°
4
72°
58°
5
69°
57°
6
70°
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 52° to 75°, with overnight lows between 38° and 58°. The average high for May is 67° with an average low of 51°. 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.
