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

Guntersville Municipal Airport (K8A1)

Lat: 34.4°NLon: 86.27°WElev: 600ft.

Fair with Haze

93°F

34°C

Humidity 56%
Wind Speed NE 10 mph
Barometer 29.96 in
Dewpoint 75°F (24°C)
Visibility 7.00 mi
Heat Index105°F (41°C)
Last update 19 Aug 4:35 pm CDT
Extended Forecast for

2 Miles SSW Union Grove AL

  • Tonight

    Tonight: Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph.

    Low: 73 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms, mainly between 3pm and 4pm.  Mostly sunny, with a high near 93. Heat index values as high as 103. Northwest wind around 5 mph becoming south in the afternoon.

    High: 93 °F

    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 4am.  Increasing clouds, with a low around 72. Calm wind.  Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am.  Mostly sunny, with a high near 89. Heat index values as high as 100. Calm wind becoming west around 5 mph.  Chance of precipitation is 50%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 73. Calm wind becoming south around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 93. Heat index values as high as 103. Northwest wind around 5 mph becoming south in the afternoon.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers and thunderstorms after 4am. Increasing clouds, with a low around 72. Calm wind. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Heat index values as high as 100. Calm wind becoming west around 5 mph. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 70. Calm wind.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 69.
Sunday
Sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 67.
Monday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 88.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 70.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Union Grove AL
 34.37°N 86.45°W (Elev. 1001 ft)
3:50 pm CDT Aug 19, 2026
4pm CDT Aug 19, 2026-6pm CDT Aug 26, 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