Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

Jackson County Airport - Reynolds Field (KJXN)

Lat: 42.26°NLon: 84.46°WElev: 988ft.

Partly Cloudy

68°F

20°C

Humidity 96%
Wind Speed Calm
Barometer 30.00 in (1015.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 3 Sep 11:56 pm EDT
Extended Forecast for

Grass Lake MI

  • Overnight

    Overnight: A 40 percent chance of showers and thunderstorms, mainly after 1am.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a steady temperature around 69. Calm wind.

    Low: 69 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms likely, mainly before 2pm.  Mostly cloudy, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am.  Mostly cloudy, with a low around 64. Light and variable wind.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely

  • Saturday

    Saturday: Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 2pm.  Partly sunny, with a high near 79. East northeast wind 3 to 6 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Labor Day

    Labor Day: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 69. Calm wind.
Friday
Showers and thunderstorms likely, mainly before 2pm. Mostly cloudy, with a high near 83. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Mostly cloudy, with a low around 64. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms likely before 11am, then a slight chance of showers between 11am and 2pm. Partly sunny, with a high near 79. East northeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly clear, with a low around 54. East northeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 55.
Labor Day
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 81.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers. Partly sunny, with a high near 86.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 64.
Thursday
A chance of showers. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Grass Lake MI
 42.25°N 84.2°W (Elev. 997 ft)
12:03 am EDT Sep 4, 2026
12am EDT Sep 4, 2026-6pm EDT Sep 10, 2026
 
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Additional Resources

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