World Resorts

USA

Grand Marais Weather

Grand Marais 14 Days Forecast

18.03
wed

Day

25°F

NE 12 mph

Precip.
0%

Night

28°F

SE 4 mph

Precip.
0%

19.03
thu

Day

30°F

NW 5 mph

Precip.
0%

Night

30°F

SW 5 mph

Precip.
0%

20.03
fri

Day

41°F

W 3 mph

Precip.
0%

Night

32°F

NE 6 mph

Precip.
0%

21.03
sat

Day

28°F

S 4 mph

Precip.
0%

Night

27°F

SW 14 mph

Precip.
0%

22.03
sun

Day

21°F

SW 14 mph

Precip.
62%

Night

14°F

S 5 mph

Precip.
0%

23.03
mon

Day

30°F

SE 6 mph

Precip.
55%

Night

28°F

NE 10 mph

Precip.
0%

24.03
tue

Day

36°F

E 9 mph

Precip.
0%

Night

25°F

SW 11 mph

Precip.
43%

25.03
wed

Day

25°F

W 19 mph

Precip.
100%

Night

30°F

W 7 mph

Precip.
25%

26.03
thu

Day

30°F

SE 15 mph

Precip.
47%

Night

5°F

S 16 mph

Precip.
0%

27.03
fri

Day

10°F

E 7 mph

Precip.
0%

Night

9°F

SE 6 mph

Precip.
0%

28.03
sat

Day

19°F

SE 12 mph

Precip.
80%

Night

5°F

NW 7 mph

Precip.
0%

29.03
sun

Day

18°F

N 6 mph

Precip.
0%

Night

9°F

SE 5 mph

Precip.
0%

30.03
mon

Day

25°F

NW 5 mph

Precip.
0%

Night

28°F

W 12 mph

Precip.
0%

31.03
tue

Day

30°F

W 19 mph

Precip.
0%

Night

30°F

W 21 mph

Precip.
100%

sea water
temperature

Grand Marais

monthly
weather

Grand Marais

current
weather

Grand Marais

7 days
forecast

Grand Marais

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2026

2025

2024

The average sea water temperature in March of 2026 was 32.5°F. The highest and lowest sea temperatures during the month were 33.3°F and 32.2°F.

Show year:

2025

2024

2023

The average sea water temperature in April of 2025 was 34.2°F. The highest and lowest sea temperatures during the month were 35.2°F and 33.4°F.