29.10
thu
thu
Day
46°F
E 16 mph
Precip.
4%
4%
Night
39°F
SE 8 mph
Precip.
10%
10%
30.10
fri
fri
Day
45°F
NE 6 mph
Precip.
3%
3%
Night
41°F
SE 3 mph
Precip.
6%
6%
31.10
sat
sat
Day
48°F
NW 3 mph
Precip.
13%
13%
Night
46°F
NE 5 mph
Precip.
36%
36%
01.11
sun
sun
Day
50°F
NE 6 mph
Precip.
26%
26%
Night
48°F
E 4 mph
Precip.
30%
30%
02.11
mon
mon
Day
52°F
W 4 mph
Precip.
38%
38%
Night
52°F
W 5 mph
Precip.
78%
78%
03.11
tue
tue
Day
46°F
S 12 mph
Precip.
46%
46%
Night
45°F
SE 4 mph
Precip.
36%
36%
04.11
wed
wed
Day
48°F
E 6 mph
Precip.
49%
49%
Night
41°F
SE 12 mph
Precip.
15%
15%
sea water
temperature
temperature
| Grand Marais |
monthly
weather
weather
| Grand Marais |
current
weather
weather
| Grand Marais |
14 days
forecast
forecast
| Grand Marais |
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 49.9°F. The highest and lowest sea temperatures during the month were 56.5°F and 46.6°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 44.6°F. The highest and lowest sea temperatures during the month were 52.0°F and 40.1°F.
Air temperature in Grand Marais, °F
Precipitation total in Grand Marais, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Grand Marais
Grand Marais on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Grand Marais
Local time: 11:35
October 29, thursday
1200
46°F
E
16 mph
16 mph
1500
45°F
E
15 mph
15 mph
1800
43°F
SE
13 mph
13 mph
2100
41°F
SE
11 mph
11 mph
October 30, friday
0000
39°F
SE
8 mph
8 mph
0300
37°F
SE
6 mph
6 mph
0600
37°F
E
5 mph
5 mph
0900
37°F
SE
2 mph
2 mph
