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

72°F

22°C

Humidity 78%
Wind Speed S 8 mph
Barometer 29.84 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 12 Oct 4:55 pm EDT
Extended Forecast for

Flat Rock MI

  • Columbus Day

    Columbus Day: Mostly sunny, with a high near 78. South southwest wind around 11 mph, with gusts as high as 18 mph.

    High: 78 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of rain and thunderstorms between 1am and 3am. Partly cloudy, with a low around 65. South southwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 65 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 82. Southwest wind 13 to 17 mph, with gusts as high as 29 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 3am. Increasing clouds, with a low around 59. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

    Low: 59 °F

    Clear then
    Chance Rain

  • Wednesday

    Wednesday: A chance of rain before 2pm. Mostly cloudy, with a high near 69. North wind 3 to 7 mph. Chance of precipitation is 40%.

    High: 69 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.

    High: 64 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain, mainly between 8pm and 2am. Cloudy, with a low around 50.

    Low: 50 °F

    Rain

  • Friday

    Friday: A chance of rain before 2pm. Mostly cloudy, with a high near 62. Breezy.

    High: 62 °F

    Chance Rain
    and Breezy

Detailed Forecast

Columbus Day
Mostly sunny, with a high near 78. South southwest wind around 11 mph, with gusts as high as 18 mph.
Tonight
A slight chance of rain and thunderstorms between 1am and 3am. Partly cloudy, with a low around 65. South southwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 82. Southwest wind 13 to 17 mph, with gusts as high as 29 mph.
Tuesday Night
A chance of rain after 3am. Increasing clouds, with a low around 59. West wind 5 to 10 mph becoming light northwest after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 40%.
Wednesday
A chance of rain before 2pm. Mostly cloudy, with a high near 69. North wind 3 to 7 mph. Chance of precipitation is 40%.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
A chance of rain after 2pm. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Thursday Night
Rain, mainly between 8pm and 2am. Cloudy, with a low around 50.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 62. Breezy.
Friday Night
Partly cloudy, with a low around 37. Breezy.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Flat Rock MI
 42.11°N 83.3°W (Elev. 597 ft)
Last Update:
4:24 pm EDT Oct 12, 2026
Forecast Valid:
4pm EDT Oct 12, 2026-6pm EDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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