S
M
T
W
T
F
S
29
50°
26°
30
47°
24°
1
36°
25°
2
36°
28°
3
42°
29°
4
44°
34°
5
45°
36°
6
46°
36°
7
48°
33°
8
47°
29°
9
43°
31°
10
42°
27°
11
39°
22°
12
35°
24°
13
34°
23°
14
32°
22°
15
31°
21°
16
32°
19°
17
32°
18°
18
29°
23°
19
30°
24°
20
34°
29°
21
39°
31°
22
38°
27°
23
39°
23°
24
36°
17°
25
31°
19°
26
28°
22°
27
29°
25°
28
39°
20°
29
34°
19°
30
31°
19°
31
30°
24°
1
33°
26°
2
38°
21°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Grand Haven
Grand Haven's December 2026 forecast shows daily high temperatures ranging from 28° to 50°, with overnight lows between 17° and 36°. The average high for December is 37° with an average low of 25°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Grand Haven. See also: January | February | March.