Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Jackson County Airport - Reynolds Field (KJXN)

Lat: 42.26°NLon: 84.46°WElev: 988ft.

Mostly Cloudy

64°F

18°C

Humidity 93%
Wind Speed S 6 mph
Barometer 29.92 in (1012.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 19 Aug 1:56 am EDT
Extended Forecast for

Grass Lake MI

  • Overnight

    Overnight: Showers, mainly before 5am.  Steady temperature around 65. West southwest wind around 6 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 65 °F

    Showers

  • Wednesday

    Wednesday: A 10 percent chance of showers before 8am.  Patchy fog between 7am and 9am.  Otherwise, mostly sunny, with a high near 79. Northwest wind around 6 mph.

    High: 79 °F

    Slight Chance
    Showers and
    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Light north northeast wind.

    High: 80 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am.  Partly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 78.

    High: 78 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Showers
    Likely then
    Mostly Clear

Detailed Forecast

Overnight
Showers, mainly before 5am. Steady temperature around 65. West southwest wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 10 percent chance of showers before 8am. Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 79. Northwest wind around 6 mph.
Wednesday Night
Partly cloudy, with a low around 55. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 80. Light north northeast wind.
Thursday Night
Mostly clear, with a low around 56. Calm wind.
Friday
Mostly sunny, with a high near 81.
Friday Night
A 30 percent chance of showers after 2am. Partly cloudy, with a low around 59.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 78.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 52.
Monday
Mostly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Grass Lake MI
 42.25°N 84.2°W (Elev. 997 ft)
2:21 am EDT Aug 19, 2026
2am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database