Big Bay, Michigan Weather
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Weather Forecast for Big Bay, Michigan : Marquette County
Issued: 6:25 am EDT Sep 1, 2025 Latitude: 46.8157568 Longitude: -87.7284636 View on Google Maps

MouseOver for Detail Forecast
Labor Day Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
30% chance of thunderstorms on Labor Day 30% chance of rain on Tonight Sunny on Tuesday 70% chance of thunderstorms on Wednesday 40% chance of rain on Thursday 20% chance of rain on Friday Partly Sunny on Saturday Mostly Sunny on Sunday
High: 75°F Low: 59°F High: 76°F High: 51 °F High: 53°F High: 55°F High: 56°F High: 61°F
  Low: 53°F Low: 44°F Low: 45°F Low: 45°F Low: 46°F  
Thunderstorms Rain Sunny Thunderstorms Rain Rain Partly Sunny Mostly Sunny
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Current Conditions at
GWINN - (KSAW)
54°
Clear
as of 6:47 AM EDST
Rel. Humidity: 100%
Dew Point: 54°F
Visibility: 10 Miles
Pressure: 30.27 in.
Flight Rule: VFR
Wind Data
5 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
HANCOCK - (KCMX)
61°
Clear
as of 6:53 AM EDST
Rel. Humidity: 87%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
3 MPH
260° West
Cloud Level(s): Clear
Current Conditions at
COPPER HARBOR - (KP59)
64°
Clear
as of 6:51 AM EDST
Rel. Humidity: 88%
Dew Point: 61°F
Pressure: 30.22 in.
Wind Data
3 MPH
30% chance of thunderstorms Labor Day Labor Day... Isolated showers between 11am and 2pm, then scattered showers and thunderstorms after 2pm. Sunny, with a high near 75. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%.
30% chance of rain Tonight Tonight... Scattered showers, mainly before 7pm. Partly cloudy, with a low around 59. Calm wind becoming south around 5 mph after midnight. Chance of precipitation is 30%.
Sunny on Tuesday Tuesday... Sunny, with a high near 76. South wind around 5 mph.
70% chance of thunderstorms Tuesday Night Tuesday Night... A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 53. Southwest wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
70% chance of thunderstorms Wednesday Wednesday... Showers likely and possibly a thunderstorm. Cloudy, with a temperature falling to around 51 by 5pm. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
40% chance of rain Wednesday Night Wednesday Night... A 40 percent chance of showers. Cloudy, with a low around 44.
40% chance of rain Thursday Thursday... A 40 percent chance of showers. Mostly cloudy, with a high near 53.
20% chance of rain Thursday Night Thursday Night... A chance of showers after 2am. Mostly cloudy, with a low around 45.
20% chance of rain Friday Friday... A chance of showers. Mostly cloudy, with a high near 55.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 45.
Partly Sunny on Saturday Saturday... Partly sunny, with a high near 56.
Mostly Cloudy on Saturday Night Saturday Night... Mostly cloudy, with a low around 46.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 61.
Current Radar Image


Sun Almanac for Big Bay, Michigan
Sunrise: 07:11 AM
Sunset: 8:30 PM
Civil Sunrise:06:40 AM
Civil Sunset: 9:01 PM
Nautical Sunrise: 06:02 AM
Nautical Sunset: 9:39 PM
Astro Sunrise: 05:22 AM
Astro Sunset: 10:20 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.