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

77°F

25°C

Humidity 94%
Wind Speed Calm
Barometer 30.05 in (1017.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Jul 3:53 am CDT
Extended Forecast for

3 Miles ENE Mermentau LA

  • Today

    Today: Showers and thunderstorms likely, mainly before 3pm. Mostly sunny, with a high near 90. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tonight

    Tonight: Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest around 5 mph.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming west around 5 mph. Chance of precipitation is 60%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 88. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 88 °F

    Showers
    Likely then
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly before 3pm. Mostly sunny, with a high near 90. Heat index values as high as 103. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming southwest around 5 mph.
Tuesday Night
Mostly clear, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 90. Calm wind becoming west around 5 mph. Chance of precipitation is 60%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Friday
Showers and possibly a thunderstorm. High near 88. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 77. Chance of precipitation is 30%.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 77.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Mermentau LA
 30.21°N 92.55°W
Last Update:
1:45 am CDT Jul 14, 2025
Forecast Valid:
4am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
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