S
M
T
W
T
F
S
27
66°
44°
28
71°
39°
29
66°
54°
30
77°
48°
1
67°
45°
2
60°
31°
3
55°
29°
4
61°
40°
5
58°
34°
6
71°
33°
7
64°
36°
8
N/A
9
53°
47°
10
64°
55°
11
66°
46°
12
48°
38°
13
48°
35°
14
51°
42°
15
55°
38°
16
49°
34°
17
51°
35°
18
53°
36°
19
54°
38°
20
52°
39°
21
53°
29°
22
52°
35°
23
41°
35°
24
49°
36°
25
52°
35°
26
47°
32°
27
42°
29°
28
40°
32°
29
48°
33°
30
44°
33°
31
49°
32°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
*Temporarily Unavailable
October Weather in Grand Portage Ut
Grand Portage Ut's October 2026 forecast shows daily high temperatures ranging from 40° to 66°, with overnight lows between 29° and 55°. The average high for October is 50° with an average low of 37°. 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 Portage Ut. See also: November | December | January.