S
M
T
W
T
F
S
26
56°
41°
27
46°
32°
28
51°
27°
29
47°
29°
30
49°
29°
1
58°
31°
2
64°
41°
3
56°
36°
4
57°
35°
5
52°
37°
6
59°
37°
7
60°
38°
8
60°
36°
9
57°
29°
10
56°
35°
11
57°
39°
12
56°
36°
13
57°
36°
14
58°
35°
15
64°
45°
16
70°
45°
17
71°
47°
18
72°
45°
19
63°
38°
20
61°
43°
21
66°
42°
22
69°
48°
23
72°
48°
24
73°
49°
25
68°
48°
26
70°
47°
27
74°
51°
28
76°
51°
29
75°
50°
30
73°
51°
31
76°
53°
1
76°
54°
2
77°
52°
3
75°
51°
4
70°
48°
5
68°
50°
6
68°
53°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
May Weather in Grand Rapids
Grand Rapids's May 2026 forecast shows daily high temperatures ranging from 46° to 77°, with overnight lows between 27° and 54°. The average high for May is 64° with an average low of 42°. 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 Rapids. See also: June | July | August.
