National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

New Orleans Naval Air Station - Alvin Callender Field (KNBG)

Lat: 29.84°NLon: 90.02°WElev: 0ft.

Partly Cloudy

77°F

25°C

Humidity 88%
Wind Speed Calm
Barometer 30.04 in (1017.3 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 14 Jul 8:55 pm CDT
Extended Forecast for

Port Sulphur LA

  • Tonight

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

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Sunny, with a high near 93. Northwest wind around 5 mph becoming south 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 77. Calm wind becoming northwest around 5 mph after midnight.

    Low: 77 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 92. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 70%.

    High: 92 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 75 °F

    Chance
    T-storms then
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 10am, then showers and thunderstorms after 10am. High near 89. North wind around 5 mph becoming south in the afternoon. Chance of precipitation is 90%.

    High: 89 °F

    T-storms

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 76. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

    Low: 76 °F

    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 89. South wind 5 to 10 mph. Chance of precipitation is 90%.

    High: 89 °F

    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 77. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Sunny, with a high near 93. Northwest wind around 5 mph becoming south in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77. Calm wind becoming northwest around 5 mph after midnight.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 92. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm before 10am, then showers and thunderstorms after 10am. High near 89. North wind around 5 mph becoming south in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Low around 76. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 89. South wind 5 to 10 mph. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 78. South wind around 5 mph.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 89. South wind around 5 mph.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Monday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Port Sulphur LA
 29.5°N 89.71°W
Last Update:
9:01 pm CDT Jul 14, 2025
Forecast Valid:
9pm CDT Jul 14, 2025-6pm CDT Jul 21, 2025
 
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Additional Resources

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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