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.

Fair

61°F

16°C

Humidity 100%
Wind Speed W 2 mph
Barometer 29.87 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 19 Aug 2:15 am EDT
Extended Forecast for

4 Miles SSE Sumner MI

  • Overnight

    Overnight: A 20 percent chance of showers.  Mostly cloudy, with a steady temperature around 65. West wind around 6 mph.

    Low: 65 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Patchy fog between 7am and 9am.  Otherwise, mostly sunny, with a high near 80. North northwest wind 3 to 6 mph.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. North northwest wind around 5 mph becoming calm  after midnight.

    Low: 52 °F

    Partly Cloudy

  • Thursday

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

    High: 82 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. Light and variable wind.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • 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 79.

    High: 79 °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

Detailed Forecast

Overnight
A 20 percent chance of showers. Mostly cloudy, with a steady temperature around 65. West wind around 6 mph.
Wednesday
Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 80. North northwest wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 52. North northwest wind around 5 mph becoming calm after midnight.
Thursday
Partly sunny, then gradually becoming 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 57. Light and variable wind.
Friday
Mostly sunny, with a high near 82.
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 79.
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:
4 Miles SSE Sumner MI
 43.24°N 84.78°W (Elev. 794 ft)
2:21 am EDT Aug 19, 2026
2am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database