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Mackinac Island Weather

Mackinac Island 14 Days Forecast

18.03
wed

Day

23°F

N 16 mph

Precip.
100%

Night

30°F

NE 9 mph

Precip.
100%

19.03
thu

Day

28°F

SE 8 mph

Precip.
0%

Night

30°F

NW 5 mph

Precip.
0%

20.03
fri

Day

34°F

S 9 mph

Precip.
100%

Night

34°F

N 3 mph

Precip.
0%

21.03
sat

Day

28°F

NE 7 mph

Precip.
0%

Night

32°F

S 5 mph

Precip.
100%

22.03
sun

Day

21°F

SW 13 mph

Precip.
100%

Night

19°F

SW 9 mph

Precip.
0%

23.03
mon

Day

18°F

NW 5 mph

Precip.
0%

Night

10°F

SE 2 mph

Precip.
0%

24.03
tue

Day

27°F

NE 15 mph

Precip.
0%

Night

27°F

SE 8 mph

Precip.
0%

25.03
wed

Day

16°F

W 12 mph

Precip.
0%

Night

23°F

NW 17 mph

Precip.
100%

26.03
thu

Day

37°F

N 11 mph

Precip.
100%

Night

18°F

S 21 mph

Precip.
100%

27.03
fri

Day

1°F

S 15 mph

Precip.
0%

Night

7°F

NE 2 mph

Precip.
0%

28.03
sat

Day

19°F

NE 7 mph

Precip.
100%

Night

14°F

SE 11 mph

Precip.
69%

29.03
sun

Day

16°F

NW 7 mph

Precip.
0%

Night

5°F

SE 5 mph

Precip.
0%

30.03
mon

Day

18°F

E 9 mph

Precip.
20%

Night

12°F

NE 2 mph

Precip.
0%

31.03
tue

Day

27°F

NW 12 mph

Precip.
0%

Night

28°F

NW 18 mph

Precip.
0%

sea water
temperature

Mackinac Island

monthly
weather

Mackinac Island

current
weather

Mackinac Island

7 days
forecast

Mackinac Island

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 33.3°F. The highest and lowest sea temperatures during the month were 36.1°F and 32.0°F.

Show year:

2025

2024

2023

The average sea water temperature in April of 2025 was 35.1°F. The highest and lowest sea temperatures during the month were 38.7°F and 32.2°F.