Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Guntersville Municipal Airport (K8A1)

Lat: 34.4°NLon: 86.27°WElev: 600ft.

Fog/Mist

75°F

24°C

Humidity 100%
Wind Speed S 9 mph
Barometer 30.03 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Last update 17 Aug 10:15 pm CDT
Extended Forecast for

4 Miles NNW Union Grove AL

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm.  Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 96. Heat index values as high as 101. Calm wind.

    High: 96 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am.  Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 10am.  Mostly sunny, with a high near 93. Chance of precipitation is 20%.

    High: 93 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms, then a chance of showers after 1am.  Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 74. Calm wind.
Tuesday
Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 68. Calm wind.
Wednesday
Sunny, with a high near 96. Heat index values as high as 101. Calm wind.
Wednesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 74. Calm wind.
Thursday
A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 93. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70.
Saturday
Sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Union Grove AL
 34.46°N 86.47°W (Elev. 600 ft)
9:50 pm CDT Aug 17, 2026
10pm CDT Aug 17, 2026-6pm CDT Aug 24, 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