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

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Fair

76°F

24°C

Humidity 91%
Wind Speed Calm
Barometer 30.02 in (1016.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 20 Aug 6:53 am CDT
Extended Forecast for

5 Miles E Iota LA

Heat Advisory August 20, 12:00pm until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Today

    Today: Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming west around 5 mph in the morning.

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 78. Southwest wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. Heat index values as high as 110. Calm wind becoming west around 5 mph.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm  after midnight.

    Low: 77 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 99. Calm wind becoming west around 5 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm.

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Calm wind.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 77 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm.  Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 107. Calm wind becoming west around 5 mph in the morning.
Tonight
Mostly clear, with a low around 78. Southwest wind around 5 mph.
Friday
Sunny and hot, with a high near 98. Heat index values as high as 110. Calm wind becoming west around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm after midnight.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm.
Sunday
Sunny and hot, with a high near 99. Calm wind.
Sunday Night
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph.
Monday Night
Mostly clear, with a low around 77.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
Tuesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles E Iota LA
 30.32°N 92.42°W
6:45 am CDT Aug 20, 2026
7am CDT Aug 20, 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