S
M
T
W
T
F
S
27
74°
60°
28
76°
59°
29
75°
57°
30
74°
56°
1
68°
57°
2
73°
54°
3
67°
51°
4
64°
49°
5
73°
48°
6
64°
48°
7
Hist. Avg.
65°
47°
8
Hist. Avg.
64°
46°
9
Hist. Avg.
64°
46°
10
Hist. Avg.
63°
46°
11
Hist. Avg.
63°
45°
12
Hist. Avg.
63°
45°
13
Hist. Avg.
62°
45°
14
Hist. Avg.
62°
44°
15
Hist. Avg.
61°
44°
16
Hist. Avg.
61°
44°
17
Hist. Avg.
61°
43°
18
Hist. Avg.
60°
43°
19
Hist. Avg.
60°
43°
20
Hist. Avg.
59°
42°
21
Hist. Avg.
59°
42°
22
Hist. Avg.
59°
42°
23
Hist. Avg.
58°
41°
24
Hist. Avg.
58°
41°
25
Hist. Avg.
57°
41°
26
Hist. Avg.
57°
41°
27
Hist. Avg.
57°
40°
28
Hist. Avg.
56°
40°
29
Hist. Avg.
56°
40°
30
Hist. Avg.
55°
39°
31
Hist. Avg.
55°
39°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Grand River
Grand River's October 2026 forecast shows daily high temperatures ranging from 64° to 76°, with overnight lows between 48° and 60°. The average high for October is 71° with an average low of 54°. 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 River. See also: November | December | January.