S
M
T
W
T
F
S
27
69°
41°
28
74°
48°
29
73°
44°
30
70°
59°
1
66°
53°
2
64°
42°
3
64°
50°
4
63°
46°
5
62°
40°
6
60°
52°
7
63°
53°
8
65°
50°
9
64°
49°
10
63°
50°
11
61°
48°
12
60°
49°
13
59°
47°
14
60°
42°
15
56°
47°
16
65°
49°
17
65°
49°
18
64°
48°
19
59°
45°
20
52°
42°
21
52°
42°
22
53°
45°
23
59°
47°
24
62°
47°
25
61°
42°
26
53°
36°
27
50°
38°
28
55°
43°
29
56°
36°
30
54°
44°
31
58°
43°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Grand Haven
Grand Haven's October 2026 forecast shows daily high temperatures ranging from 50° to 66°, with overnight lows between 36° and 53°. The average high for October is 60° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how October weather will actually feel in Grand Haven. See also: November | December | January.