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.

Thunderstorm in Vicinity

75°F

24°C

Humidity 90%
Wind Speed S 8 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 72°F (22°C)
Visibility 9.00 mi
Last update 9 Jan 12:53 pm CST
Extended Forecast for

Mermentau LA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 78. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Patchy fog between 4am and 5am. Low around 63. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Chance
    T-storms then
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers and thunderstorms likely before 9am, then a slight chance of showers between 9am and 10am. Mostly cloudy, with a temperature rising to near 67 by noon, then falling to around 61 during the remainder of the day. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F⇓

    Showers
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. North wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 57. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 57 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Northeast wind around 5 mph.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 57. Calm wind.

    High: 57 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 78. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 2am, then showers and possibly a thunderstorm, mainly after 2am. Patchy fog between 4am and 5am. Low around 63. South wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms likely before 9am, then a slight chance of showers between 9am and 10am. Mostly cloudy, with a temperature rising to near 67 by noon, then falling to around 61 during the remainder of the day. North wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 43. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Partly sunny, with a high near 57. North wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 35. Northeast wind around 5 mph.
Monday
Partly sunny, with a high near 54. Northeast wind around 5 mph becoming calm in the afternoon.
Monday Night
Mostly cloudy, with a low around 36. Calm wind.
Tuesday
Partly sunny, with a high near 57. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 43.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mermentau LA
 30.19°N 92.61°W
Last Update:
12:45 pm CST Jan 9, 2026
Forecast Valid:
1pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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