National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Detroit/Grosse Ile, Grosse Ile Airport (KONZ)

Lat: 42.1°NLon: 83.16°WElev: 591ft.

Fair

19°F

-7°C

Humidity 58%
Wind Speed E 3 mph
Barometer 30.31 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 4 Dec 6:35 pm EST
Extended Forecast for

Flat Rock MI

  • Tonight

    Tonight: Mostly clear, with a low around 8. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 8 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 26. Southwest wind 6 to 11 mph.

    High: 26 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 19. Southwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 19 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 34. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 34 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 20. West wind around 6 mph becoming calm in the evening.

    Low: 20 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.

    High: 31 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 8. Calm wind becoming south southwest around 6 mph after midnight.
Friday
Mostly sunny, with a high near 26. Southwest wind 6 to 11 mph.
Friday Night
Increasing clouds, with a low around 19. Southwest wind around 10 mph, with gusts as high as 18 mph.
Saturday
Mostly cloudy, with a high near 34. Southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 20. West wind around 6 mph becoming calm in the evening.
Sunday
A chance of snow. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 10.
Monday
Mostly sunny, with a high near 25.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 14.
Tuesday
Snow likely, mainly before 1pm. Cloudy, with a high near 33.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 23.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 34.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 17.
Thursday
A chance of snow. Partly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Flat Rock MI
 42.09°N 83.28°W (Elev. 587 ft)
Last Update:
6:24 pm EST Dec 4, 2025
Forecast Valid:
6pm EST Dec 4, 2025-6pm EST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation