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

41°F

5°C

Humidity 81%
Wind Speed NW 3 mph
Barometer 30.04 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 15 May 4:35 am EDT
Extended Forecast for

Isle Saint George OH

  • Today

    Today: Partly sunny, with a high near 64. South wind 6 to 8 mph.

    High: 64 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 57. South wind 10 to 14 mph.

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms likely before 2pm, then a chance of showers between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 70. South wind 15 to 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 70 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southwest wind 9 to 13 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 71. East wind 7 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 71 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. Chance of precipitation is 40%.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 60%.

    High: 78 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Today
Partly sunny, with a high near 64. South wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around 57. South wind 10 to 14 mph.
Saturday
Showers and thunderstorms likely before 2pm, then a chance of showers between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 70. South wind 15 to 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Southwest wind 9 to 13 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 71. East wind 7 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Sunny, with a high near 78.
Monday Night
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. Chance of precipitation is 40%.
Tuesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then showers likely after 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Wednesday
Showers likely. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Wednesday Night
Mostly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Isle Saint George OH
 41.73°N 82.82°W (Elev. 571 ft)
Last Update:
4:02 am EDT May 15, 2026
Forecast Valid:
4am EDT May 15, 2026-6pm EDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation