Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Fair

81°F

27°C

Humidity 91%
Wind Speed W 7 mph
Barometer 29.99 in (1015.6 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 21 Aug 4:53 am CDT
Extended Forecast for

4 Miles NW Washington LA

Extreme Heat Warning August 21, 10:00am until August 21, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Today

    Today: A 20 percent chance of showers and thunderstorms after 3pm.  Sunny and hot, with a high near 100. Heat index values as high as 112. West wind around 5 mph.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, then gradually becoming mostly clear, with a low around 77. Calm wind becoming southwest around 5 mph.

    Low: 77 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 101. Heat index values as high as 111. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Calm wind.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 75. Calm wind becoming south around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the morning.

    High: 97 °F

    Hot

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 3pm. Sunny and hot, with a high near 100. Heat index values as high as 112. West wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. Calm wind becoming southwest around 5 mph.
Saturday
Sunny and hot, with a high near 101. Heat index values as high as 111. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 75. Calm wind.
Sunday
Sunny and hot, with a high near 100. Calm wind.
Sunday Night
Mostly clear, with a low around 77. Calm wind.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Calm wind becoming southwest around 5 mph.
Monday Night
Partly cloudy, with a low around 75. Calm wind becoming south around 5 mph.
Tuesday
Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Washington LA
 30.65°N 92.12°W
2:45 am CDT Aug 21, 2026
5am CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database