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.

Fair

74°F

23°C

Humidity 100%
Wind Speed Calm
Barometer 30.06 in (1017.7 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Last update 14 Jul 4:55 am CDT
Extended Forecast for

Port Sulphur LA

  • Today

    Today: A 50 percent chance of showers and thunderstorms, mainly between 8am and 5pm. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.

    High: 91 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Increasing clouds, with a high near 92. Northwest wind around 5 mph becoming southwest in the afternoon.

    High: 92 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. Calm wind becoming northwest around 5 mph after midnight.

    Low: 78 °F

    Partly Cloudy
    then Slight
    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 93. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%.

    High: 93 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 77. Northeast wind around 5 mph becoming west in the evening. Chance of precipitation is 80%.

    Low: 77 °F

    Chance
    T-storms then
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 89. North wind 5 to 15 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 10 mph. Chance of precipitation is 80%.

    Low: 76 °F

    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 89. Southwest wind 10 to 15 mph.

    High: 89 °F

    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms, mainly between 8am and 5pm. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A 40 percent chance of showers and thunderstorms. Increasing clouds, with a high near 92. Northwest wind around 5 mph becoming southwest in the afternoon.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. 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 93. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 77. Northeast wind around 5 mph becoming west in the evening. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 89. North wind 5 to 15 mph becoming south in the afternoon. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm. Low around 76. South wind around 10 mph. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 89. Southwest wind 10 to 15 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 78. South wind 5 to 10 mph.
Saturday
Showers and thunderstorms. Partly sunny, with a high near 90. South wind around 5 mph.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.
Sunday
Showers and thunderstorms likely. 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:
12:51 am CDT Jul 14, 2025
Forecast Valid:
5am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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