


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 | ![]() |
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 | |
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