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

Alma, Gratiot Community Airport (KAMN)

Lat: 43.32°NLon: 84.69°WElev: 751ft.

Fog/Mist

55°F

13°C

Humidity 100%
Wind Speed NW 2 mph
Barometer 29.91 in
Dewpoint 55°F (13°C)
Visibility 0.75 mi
Last update 19 Aug 7:15 am EDT
Extended Forecast for

Sumner MI

  • Today

    Today: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 80. North northwest wind 3 to 7 mph.

    High: 80 °F

    Patchy Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 52. North northwest wind around 5 mph becoming calm  after midnight.

    Low: 52 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Light and variable wind.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Partly sunny, with a high near 82. South southwest wind 6 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers after 2am.  Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of thunderstorms before 8pm.  Mostly clear, with a low around 54.

    Low: 54 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 80. North northwest wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 52. North northwest wind around 5 mph becoming calm after midnight.
Thursday
Sunny, with a high near 82. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 56. Light and variable wind.
Friday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 82. South southwest wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Friday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 60.
Saturday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Saturday Night
A chance of thunderstorms before 8pm. Mostly clear, with a low around 54.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Sumner MI
 43.31°N 84.83°W (Elev. 768 ft)
7:03 am EDT Aug 19, 2026
7am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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Additional Resources

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