Additional Severe Weather Concerns for the Center of the Nation; Heat Builds for the West; Critical Fire Weather for Alaska

Active hazardous weather continues for the center of the nation with more severe thunderstorms and heavy rainfall today. Heat will linger across the southern Plains, then expand westward early in the week. The combination of heat and dry conditions will fuel fire weather concerns for the Four Corners region and across interior Alaska. Read More >

Current conditions at

Lafayette, Lafayette Regional Airport (KLFT)

Lat: 30.2°NLon: 91.99°WElev: 39ft.

Thunderstorm in Vicinity Light Rain

78°F

26°C

Humidity 93%
Wind Speed SW 7 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 21 Jun 8:53 am CDT
Extended Forecast for

Mermentau LA

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 1pm.  Partly sunny, with a high near 87. Heat index values as high as 98. South wind around 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 79. South wind 5 to 10 mph.

    Low: 79 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 89. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 89 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. South wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 91 °F

    Sunny

  • Tuesday Night

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

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the morning.

    High: 92 °F

    Sunny

  • Wednesday Night

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

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the morning.

    High: 91 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Heat index values as high as 98. South wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 79. South wind 5 to 10 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 89. Heat index values as high as 102. South wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 78. South wind 5 to 10 mph.
Tuesday
Sunny, with a high near 91. Light south wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 76. Southwest wind 5 to 10 mph becoming light after midnight.
Wednesday
Sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the morning.
Wednesday Night
Mostly clear, with a low around 76. Southwest wind 5 to 10 mph becoming light after midnight.
Thursday
Sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 75.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 77.
Saturday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Mermentau LA
 30.18°N 92.58°W
7:45 am CDT Jun 21, 2026
9am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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