Water Temperature of Straits of Mackinac Near Mackinaw City, MI

Current Water Temperature

57.2°F

Measurement Time: Wednesday, October 22, 2025, 6:40 AM EDT

Temperature Locations

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Local Points of Interest

Lake Michigan; Mackinac Bridge; Saint Ignace

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Straits of Mackinac

Station Name: Mackinac Straits West, Mackinaw City, MI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet / 175 meters

Nearest Address:
Offshore
Mackinaw City, MI 49701
Mackinac County

GPS Coordinates: 45.825, -84.772

Nearby Water Temperatures

Lake Huron, Bois Blanc Island, MI (30.8 mi)
Little Traverse Bay, Petoskey, MI (32.8 mi)
St. Marys River, Barbeau, MI (41.2 mi)
St. Marys River, Barbeau, MI (41.7 mi)
Lake Huron, De Tour Village, MI (43.6 mi)
St. Marys River, Sault Ste. Marie, MI (50.5 mi)
St. Marys River, Sault Ste. Marie, MI (50.9 mi)
Seul Choix Bay, Port Inland, MI (53.8 mi)
Lake Michigan, Leland, MI (77.7 mi)
Manistee River, Grayling, MI (78.3 mi)
North Branch Au Sable River, Grayling, MI (78.5 mi)
Au Sable River, Luzerne, MI (82.7 mi)
Thunder Bay River, Alpena, MI (83.7 mi)
South Branch Au Sable River, Grayling, MI (85.0 mi)
Au Sable River, Mio, MI (86.3 mi)

Weather Near Mackinaw City, Michigan

Current Weather

19.8°F
Light snow
Conditions: Light snow
Humidity: 73%
Feels Like: 3.1°F
Wind: WNW 22.4 mph
Wind Gusts: 27.8 mph
Pressure: 29.29 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Light freezing rain
Fri
H: 24°F
L: 17°F
Moderate or heavy snow showers
Sat
H: 32°F
L: 20°F
Partly Cloudy
Sun
H: 21°F
L: 18°F
Moderate or heavy snow showers
Mon
H: 31°F
L: 22°F
Moderate or heavy snow showers
Tue
H: 34°F
L: 25°F

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 142.85 μg/m3
Nitrogen Dioxide: 1.05 μg/m3
Sulphur Dioxide: 0.95 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 8:17 AM
Sun Transit: 12:36 AM
Sunset: 4:56 PM
Daylight: 8 hrs 40 mins
Moonrise: 8:25 AM
Moon Transit: 12:18 AM
Moonset: 4:12 PM
Moon Phase: New
Moon Illumination: 1.1%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
11:48 AM - 2:18 PM

Minor Periods

3:42 PM - 5:12 PM
7:55 AM - 9:25 AM

Action Rating: 5 out of 5

special weather statement in effect

Service Notice – November 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is tentatively set for deployment November 26, 2025. Data changes will appear in CAP following this deployment, 2) the alert name ‘extreme cold warning’ will change to ‘cold warning’, 3) two Public zone names will change in Saskatchewan, 4) ECCC's initiative to introduce free-form polygons to represent the true threat area of a weather hazard continues, there will be changes coming to CAP and 5) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – novembre 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est provisoirement prévue pour un déploiement le 26 novembre 2025. Des changements aux données apparaîtront dans le PAC suite à ce déploiement, 2) le nom de l’alerte ‘avertissement de froid extrême’ changera pour ‘avertissement de froid’, 3) deux noms de zones publiques seront modifiés en Saskatchewan, 4) l’initiative d’ECCC visant à introduire des polygones libres pour représenter la véritable zone de menace d’un danger météorologique se poursuit. Des changements seront également apportés au PAC et 5) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Thu December 18, 2025, 10:36 PM
Expires: Fri December 19, 2025, 2:03 PM

Possible flash freeze Friday. What: Temperatures are forecast to fall well below the freezing mark. Ponding water, slush, and any falling precipitation will freeze as the temperature drops. When: Late overnight into Friday morning. Additional information: Rain showers will change over to snow late overnight through Friday morning as temperatures fall below the freezing mark. Local snowfall amounts of 5 cm are expected. Northerly winds gusting 50 to 60 km/h may result in local blowing snow. The combination of snow and blowing snow may result in poor visibility at times. Roads and walkways may become icy and slippery. Travel may become difficult at times. ### Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm. For more information about the alerting program, please visit: https://www.canada.ca/en/services/environment/weather/severeweather/weather-alerts/colour-coded-alerts.


Friday, December 19, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 22.8°F
Average Humidity: 81%
Chance of Rain: 89%
Wind: 24.6 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.38 μg/m3
PM10: 1.47 μg/m3
Carbon Monoxide: 158.65 μg/m3
Nitrogen Dioxide: 2.49 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 71.76 μg/m3

Astronomical

Sunrise: 8:17 AM
Sun Transit: 12:36 AM
Sunset: 4:56 PM
Daylight: 8 hrs 40 mins
Moonrise: 8:25 AM
Moon Transit: 12:18 AM
Moonset: 4:12 PM
Moon Phase: New
Moon Illumination: 1.1%

Best Times for Fishing or Hunting

Major Periods

12:05 AM - 2:35 AM
11:48 AM - 2:18 PM

Minor Periods

3:42 PM - 5:12 PM
7:55 AM - 9:25 AM

Action Rating: 5 out of 5

Saturday, December 20, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 26.6°F
Average Humidity: 83%
Chance of Rain: 71%
Wind: 28.9 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.5 μg/m3
PM10: 2.74 μg/m3
Carbon Monoxide: 152.85 μg/m3
Nitrogen Dioxide: 3.34 μg/m3
Sulphur Dioxide: 1.42 μg/m3
Ozone: 74.72 μg/m3

Astronomical

Sunrise: 8:17 AM
Sun Transit: 12:36 AM
Sunset: 4:57 PM
Daylight: 8 hrs 40 mins
Moonrise: 9:16 AM
Moon Transit: 1:11 PM
Moonset: 5:08 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:58 AM - 3:28 AM
12:41 AM - 3:11 PM

Minor Periods

4:38 PM - 6:08 PM
8:46 AM - 10:16 AM

Action Rating: 5 out of 5

Sunday, December 21, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 21.2°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 28.2 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.56 μg/m3
PM10: 1.69 μg/m3
Carbon Monoxide: 145.21 μg/m3
Nitrogen Dioxide: 1.65 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 77.56 μg/m3

Astronomical

Sunrise: 8:18 AM
Sun Transit: 12:37 AM
Sunset: 4:57 PM
Daylight: 8 hrs 40 mins
Moonrise: 9:58 AM
Moon Transit: 2:02 PM
Moonset: 6:13 PM
Moon Phase: New
Moon Illumination: 1.5%

Best Times for Fishing or Hunting

Major Periods

1:50 AM - 4:20 AM
1:32 PM - 4:02 PM

Minor Periods

5:43 PM - 7:13 PM
9:28 AM - 10:58 AM

Action Rating: 3 out of 5

Monday, December 22, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 26.3°F
Average Humidity: 83%
Chance of Rain: 82%
Wind: 18.6 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.17 μg/m3
PM10: 3.43 μg/m3
Carbon Monoxide: 154.55 μg/m3
Nitrogen Dioxide: 4.38 μg/m3
Sulphur Dioxide: 1.57 μg/m3
Ozone: 72.44 μg/m3

Astronomical

Sunrise: 8:18 AM
Sun Transit: 12:37 AM
Sunset: 4:58 PM
Daylight: 8 hrs 40 mins
Moonrise: 10:32 AM
Moon Transit: 2:53 PM
Moonset: 7:22 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%

Best Times for Fishing or Hunting

Major Periods

2:41 AM - 5:11 AM
2:23 PM - 4:53 PM

Minor Periods

6:52 PM - 8:22 PM
10:02 AM - 11:32 AM

Action Rating: 3 out of 5

Tuesday, December 23, 2025

Weather Forecast

Conditions: Moderate or heavy snow showers
Average Temperature: 30.8°F
Average Humidity: 85%
Chance of Rain: 61%
Wind: 19 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 7.58 μg/m3
PM10: 8.1 μg/m3
Carbon Monoxide: 210.39 μg/m3
Nitrogen Dioxide: 9.25 μg/m3
Sulphur Dioxide: 2.74 μg/m3
Ozone: 53.85 μg/m3

Astronomical

Sunrise: 8:19 AM
Sun Transit: 12:38 AM
Sunset: 4:58 PM
Daylight: 8 hrs 40 mins
Moonrise: 10:58 AM
Moon Transit: 3:40 PM
Moonset: 8:34 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

3:30 AM - 6:00 AM
3:10 PM - 5:40 PM

Minor Periods

8:04 PM - 9:34 PM
10:28 AM - 11:58 AM

Action Rating: 2 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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