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

78°F

26°C

Humidity 90%
Wind Speed S 6 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Jun 9:53 pm CDT
Extended Forecast for

Mermentau LA

  • Tonight

    Tonight: A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 76. South wind around 5 mph.

    Low: 76 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Heat index values as high as 98. South wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76. South wind 5 to 10 mph.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 99. South wind 5 to 10 mph.

    High: 89 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South wind 5 to 10 mph becoming light after midnight.

    Low: 76 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 60%.

    High: 90 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Tonight
A 20 percent chance of showers before 11pm. Mostly cloudy, with a low around 76. South wind around 5 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. Heat index values as high as 98. South wind 5 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Partly cloudy, with a low around 76. South wind 5 to 10 mph.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Heat index values as high as 99. South wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 76. South wind 5 to 10 mph becoming light after midnight.
Juneteenth
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 60%.
Thursday Night
Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm after midnight.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 91.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Sunday
Showers and thunderstorms likely. Sunny, with a high near 91. Chance of precipitation is 60%.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mermentau LA
 30.18°N 92.58°W
Last Update:
9:25 pm CDT Jun 16, 2025
Forecast Valid:
10pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025
 
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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