29.10
thu
thu
Day
54°F
E 14 mph
Precip.
8%
8%
Night
46°F
E 20 mph
Precip.
19%
19%
30.10
fri
fri
Day
46°F
SE 16 mph
Precip.
6%
6%
Night
45°F
SE 7 mph
Precip.
10%
10%
31.10
sat
sat
Day
48°F
N 6 mph
Precip.
15%
15%
Night
50°F
N 8 mph
Precip.
14%
14%
01.11
sun
sun
Day
54°F
NE 7 mph
Precip.
8%
8%
Night
52°F
NE 5 mph
Precip.
19%
19%
02.11
mon
mon
Day
54°F
W 7 mph
Precip.
7%
7%
Night
54°F
NW 10 mph
Precip.
66%
66%
03.11
tue
tue
Day
55°F
N 12 mph
Precip.
80%
80%
Night
52°F
NE 9 mph
Precip.
15%
15%
04.11
wed
wed
Day
55°F
NE 9 mph
Precip.
17%
17%
Night
54°F
NE 9 mph
Precip.
38%
38%
sea water
temperature
temperature
| Mackinac Island |
monthly
weather
weather
| Mackinac Island |
current
weather
weather
| Mackinac Island |
14 days
forecast
forecast
| Mackinac Island |
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 55.5°F. The highest and lowest sea temperatures during the month were 60.4°F and 50.7°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 47.6°F. The highest and lowest sea temperatures during the month were 52.7°F and 42.8°F.
Air temperature in Mackinac Island, °F
Precipitation total in Mackinac Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Mackinac Island
Mackinac Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mackinac Island
Local time: 12:35
October 29, thursday
1500
54°F
E
19 mph
19 mph
1800
48°F
SE
23 mph
23 mph
2100
46°F
SE
21 mph
21 mph
October 30, friday
0000
46°F
E
20 mph
20 mph
0300
46°F
SE
21 mph
21 mph
0600
46°F
SE
20 mph
20 mph
0900
45°F
SE
20 mph
20 mph
1200
46°F
SE
16 mph
16 mph
