S
M
T
W
T
F
S
27
60°
51°
28
66°
52°
29
61°
56°
30
63°
51°
1
68°
45°
2
60°
41°
3
55°
41°
4
63°
42°
5
54°
36°
6
62°
46°
7
69°
42°
8
64°
40°
9
53°
37°
10
60°
51°
11
62°
51°
12
56°
43°
13
49°
43°
14
54°
45°
15
49°
46°
16
50°
34°
17
53°
38°
18
55°
40°
19
56°
37°
20
53°
39°
21
57°
39°
22
52°
38°
23
52°
37°
24
62°
49°
25
54°
33°
26
43°
33°
27
48°
43°
28
54°
41°
29
53°
40°
30
51°
39°
31
53°
42°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
October Weather in Grand Marais
Grand Marais's October 2026 forecast shows daily high temperatures ranging from 43° to 54°, with overnight lows between 33° and 43°. The average high for October is 51° with an average low of 39°. 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 Marais. See also: November | December | January.