Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Muscle Shoals, North West Alabama Regional Airport (KMSL)

Lat: 34.74°NLon: 87.6°WElev: 548ft.

Fair

80°F

27°C

Humidity 79%
Wind Speed S 5 mph
Barometer 29.93 in (1012.8 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 20 Aug 12:53 am CDT
Extended Forecast for

Underwood-Petersville AL

  • Overnight

    Overnight: Partly cloudy, with a low around 74. South southwest wind around 5 mph becoming north northwest.

    Low: 74 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 95. Heat index values as high as 107. North northeast wind around 5 mph becoming south southwest in the morning.

    High: 95 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers.  Mostly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm.  Chance of precipitation is 40%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 92. Heat index values as high as 99. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68. North northwest wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 74. South southwest wind around 5 mph becoming north northwest.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 107. North northeast wind around 5 mph becoming south southwest in the morning.
Thursday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 71. West southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 92. Heat index values as high as 99. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 68. North northwest wind around 5 mph becoming calm.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 89.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 91.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Underwood-Petersville AL
 34.86°N 87.71°W (Elev. 600 ft)
12:50 am CDT Aug 20, 2026
1am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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