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

Heavy Rainfall and Flooding in the Mid-Atlantic; Heat and Wildfire Concerns in the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the West with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

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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Forecast Area
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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
 
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