National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Current conditions at

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Mostly Cloudy

91°F

33°C

Humidity 59%
Wind Speed W 5 mph
Barometer 30.20 in (1022.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 15 Aug 10:53 am CDT
Extended Forecast for

Mermentau LA

Heat Advisory until August 15, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 15, 07:00pm

    NOW until 7:00pm Sat

    Heat Advisory

  • Today

    High: 96 °F

    Sunny

  • Tonight

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

    Low: 77 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Heat index values as high as 107. Northwest wind around 5 mph becoming calm.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 77. Southwest wind around 5 mph.

    Low: 77 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Southwest wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the morning.

    High: 96 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 96. Heat index values as high as 107. Calm wind becoming south around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 96. Heat index values as high as 107. Northwest wind around 5 mph becoming calm.
Sunday Night
Clear, with a low around 77. Southwest wind around 5 mph.
Monday
Sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 77. Southwest wind around 5 mph.
Tuesday
Mostly sunny, with a high near 96. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 95. Light west wind becoming southwest 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 96.
Thursday Night
Partly cloudy, with a low around 76.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mermentau LA
 30.18°N 92.58°W
Last Update:
7:45 am CDT Aug 15, 2026
Forecast Valid:
11am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation