7-Day Forecast 29.5°N 89.71°W (Text-Only)
NWS Forecast for: Port Sulphur LA
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 12:06 am CDT Jul 13, 2025
Print


  • Overnight

    Overnight: Mostly clear, with a steady temperature around 81. Calm wind.

    Low: 81 °F

    Mostly Clear


  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 10am.  Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Chance
    T-storms

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 78 °F

    Mostly Clear


  • Monday

    Monday: Showers and thunderstorms likely, mainly before 1pm.  Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.  Chance of precipitation is 60%.

    High: 91 °F

    T-storms
    Likely

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 78 °F

    Mostly Clear


  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 93. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 93 °F

    Chance
    T-storms

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 78 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely.  Partly sunny, with a high near 92. Northwest wind around 5 mph becoming east in the afternoon.  Chance of precipitation is 60%.

    High: 92 °F

    T-storms
    Likely

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms likely, mainly after 1am.  Mostly cloudy, with a low around 76. South wind around 5 mph becoming calm.

    Low: 76 °F

    T-storms
    Likely

  • Overnight: Mostly clear, with a steady temperature around 81. Calm wind.

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 10am. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Sunday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.

    Monday: Showers and thunderstorms likely, mainly before 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    Monday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. Northwest wind around 5 mph becoming southwest in the afternoon.

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.

    Wednesday: Showers and thunderstorms likely. Partly sunny, with a high near 92. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%.

    Wednesday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 76. South wind around 5 mph becoming calm.

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. Mostly cloudy, with a high near 90. Light and variable wind becoming northeast 5 to 10 mph in the morning.

    Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.

    Friday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 90. South wind 5 to 10 mph.

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph.

    Saturday: Showers and thunderstorms. Partly sunny, with a high near 90. Southwest wind around 5 mph.



    Port Sulphur LA
     29.5°N 89.71°W

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