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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 30.45°N 91.18°W (Text-Only)
NWS Forecast for: Port Allen LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 2:01 am CDT Jun 30, 2026		Print

  • Today

    Today: Sunny and hot, with a high near 98. Heat index values as high as 109. Calm wind.

    High: 98 °F

    Hot



  • Tonight

    Tonight: Partly cloudy, with a low around 78. Calm wind.

    Low: 78 °F

    Partly Cloudy



  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 95. Heat index values as high as 109. North wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Slight Chance
    T-storms then
    T-storms

  • Wednesday
    Night

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 77. Calm wind. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm.

    Low: 76 °F

    Mostly Clear



  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear



  • Independence
    Day

    Independence Day: A chance of showers and thunderstorms, mainly after 1pm. Sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph.

    High: 95 °F

    Chance
    T-storms




    • Today: Sunny and hot, with a high near 98. Heat index values as high as 109. Calm wind.

    Tonight: Partly cloudy, with a low around 78. Calm wind.

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 95. Heat index values as high as 109. North wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Wednesday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Cloudy during the early evening, then gradual clearing, with a low around 77. Calm wind. Chance of precipitation is 20%.

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming southeast around 5 mph in the afternoon.

    Thursday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm.

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Calm wind.

    Friday Night: Mostly clear, with a low around 77. Calm wind.

    Independence Day: A chance of showers and thunderstorms, mainly after 1pm. Sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph.

    Saturday Night: A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm.

    Sunday: Showers and thunderstorms likely. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph.

    Sunday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm.

    Monday: Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph.


    Port Allen LA
     30.45°N 91.18°W

    Visit your local NWS office at: https://www.weather.gov/lix