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

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Fair

60°F

16°C

Humidity 96%
Wind Speed Calm
Barometer 30.21 in (1022.9 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 14 Nov 7:53 am CST
Extended Forecast for

Mermentau LA

  • Today

    Today: Sunny, with a high near 77. South wind 5 to 10 mph.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 58. South wind around 5 mph becoming calm after midnight.

    Low: 58 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 79. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 79 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 60. South wind around 5 mph becoming calm after midnight.

    Low: 60 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Areas of fog before 8am. Otherwise, sunny, with a high near 80. Light southwest wind increasing to 5 to 10 mph in the morning.

    High: 80 °F

    Areas Fog
    then Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. South wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81. Light south wind increasing to 5 to 10 mph in the morning.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. South wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. South wind 5 to 15 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 77. South wind 5 to 10 mph.
Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 58. South wind around 5 mph becoming calm after midnight.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 79. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 60. South wind around 5 mph becoming calm after midnight.
Sunday
Areas of fog before 8am. Otherwise, sunny, with a high near 80. Light southwest wind increasing to 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 62. South wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 81. Light south wind increasing to 5 to 10 mph in the morning.
Monday Night
Partly cloudy, with a low around 66. South wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. South wind 5 to 15 mph.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
Wednesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 65.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mermentau LA
 30.18°N 92.58°W
Last Update:
6:45 am CST Nov 14, 2025
Forecast Valid:
8am CST Nov 14, 2025-6pm CST Nov 20, 2025
 
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Additional Resources

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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