29.06
mon
mon
Day
63°F
W 9 mph
Precip.
88%
88%
Night
68°F
SW 6 mph
Precip.
17%
17%
30.06
tue
tue
Day
68°F
NE 6 mph
Precip.
25%
25%
Night
61°F
SE 6 mph
Precip.
5%
5%
01.07
wed
wed
Day
64°F
E 3 mph
Precip.
11%
11%
Night
55°F
SE 4 mph
Precip.
42%
42%
02.07
thu
thu
Day
64°F
N 7 mph
Precip.
21%
21%
Night
61°F
S 1 mph
Precip.
13%
13%
03.07
fri
fri
Day
59°F
S 8 mph
Precip.
47%
47%
Night
55°F
S 2 mph
Precip.
43%
43%
04.07
sat
sat
Day
61°F
N 4 mph
Precip.
25%
25%
Night
55°F
W 5 mph
Precip.
43%
43%
05.07
sun
sun
Day
57°F
W 1 mph
Precip.
31%
31%
Night
55°F
E 4 mph
Precip.
43%
43%
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 June, °F
Show year:
2026
2025
2024
The average sea water temperature in June of 2026 was 37.6°F. The highest and lowest sea temperatures during the month were 39.0°F and 34.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 53.6°F. The highest and lowest sea temperatures during the month were 66.4°F and 42.1°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: 17:30
June 29, monday
1800
68°F
W
12 mph
12 mph
2100
64°F
W
11 mph
11 mph
June 30, tuesday
0000
68°F
SW
6 mph
6 mph
0300
66°F
W
4 mph
4 mph
0600
61°F
NE
2 mph
2 mph
0900
64°F
NE
5 mph
5 mph
1200
68°F
NE
6 mph
6 mph
1500
70°F
N
6 mph
6 mph
