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Mackinac Island Weather

Mackinac Island 14 Days Forecast

30.12
tue

Day

21°F

SE 16 mph

Precip.
100%

Night

19°F

E 14 mph

Precip.
0%

31.12
wed

Day

16°F

SE 19 mph

Precip.
0%

Night

16°F

E 21 mph

Precip.
0%

01.01
thu

Day

16°F

E 21 mph

Precip.
0%

Night

14°F

E 21 mph

Precip.
70%

02.01
fri

Day

16°F

E 19 mph

Precip.
64%

Night

19°F

E 18 mph

Precip.
73%

03.01
sat

Day

21°F

E 14 mph

Precip.
20%

Night

14°F

W 5 mph

Precip.
0%

04.01
sun

Day

21°F

NW 11 mph

Precip.
26%

Night

27°F

NW 12 mph

Precip.
0%

05.01
mon

Day

30°F

N 8 mph

Precip.
0%

Night

32°F

SE 6 mph

Precip.
100%

06.01
tue

Day

19°F

SE 23 mph

Precip.
83%

Night

19°F

SE 10 mph

Precip.
64%

07.01
wed

Day

23°F

NW 7 mph

Precip.
100%

Night

21°F

W 4 mph

Precip.
75%

08.01
thu

Day

21°F

N 3 mph

Precip.
43%

Night

23°F

NE 2 mph

Precip.
0%

09.01
fri

Day

28°F

N 4 mph

Precip.
0%

Night

25°F

SE 2 mph

Precip.
0%

10.01
sat

Day

30°F

SE 4 mph

Precip.
28%

Night

25°F

SE 9 mph

Precip.
100%

11.01
sun

Day

16°F

NW 10 mph

Precip.
0%

Night

16°F

NE 6 mph

Precip.
0%

12.01
mon

Day

23°F

N 12 mph

Precip.
0%

Night

25°F

N 11 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:

2025

2024

2023

The average sea water temperature in December of 2025 was 38.0°F. The highest and lowest sea temperatures during the month were 42.4°F and 35.4°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 36.2°F. The highest and lowest sea temperatures during the month were 38.5°F and 34.0°F.