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%
05.11
thu
thu
Day

41°F
SE 12 mph
Precip.
11%
11%
Night

36°F
SE 9 mph
Precip.
19%
19%
06.11
fri
fri
Day

37°F
E 7 mph
Precip.
10%
10%
Night

37°F
NE 4 mph
Precip.
10%
10%
07.11
sat
sat
Day

41°F
NE 9 mph
Precip.
17%
17%
Night

41°F
NE 6 mph
Precip.
25%
25%
08.11
sun
sun
Day

45°F
N 4 mph
Precip.
23%
23%
Night

41°F
SW 6 mph
Precip.
24%
24%
09.11
mon
mon
Day

45°F
W 6 mph
Precip.
33%
33%
Night

39°F
SW 4 mph
Precip.
31%
31%
10.11
tue
tue
Day

48°F
NE 6 mph
Precip.
13%
13%
Night

41°F
SE 7 mph
Precip.
22%
22%
11.11
wed
wed
Day

45°F
NE 4 mph
Precip.
18%
18%
Night

43°F
E 4 mph
Precip.
26%
26%
sea water
temperature
temperature
| Grand Marais |
monthly
weather
weather
| Grand Marais |
current
weather
weather
| Grand Marais |
7 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




























