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Severe Thunderstorms and Heavy Rain in the Central Plains; Dry Thunderstorms and Critical Fire Weather in the West

Severe thunderstorms and heavy rain may produce large to very-large hail, severe winds, tornadoes and numerous instances of flash flooding across portions of the central Plains. Scattered slow-moving storms will continue to bring a flash flooding threat to the central Gulf Coast. Elevated to critical fire weather conditions are expected across much of the western U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

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

Lat: 29.84°NLon: 90.02°WElev: 0ft.

Fair

77°F

25°C

Humidity 96%
Wind Speed SE 3 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Jun 3:55 am CDT
Extended Forecast for

Port Sulphur LA

Heat Advisory June 20, 12:00pm until June 20, 06:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny, with a high near 89. Southwest wind 5 to 10 mph.

    High: 89 °F

    Partly Sunny
    then Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 89. South wind 5 to 15 mph.

    High: 89 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 81. South wind around 10 mph.

    Low: 81 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 90. Southwest wind around 10 mph.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 81. Southwest wind 5 to 10 mph.

    Low: 81 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Southwest wind 5 to 10 mph.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 79. Southwest wind 5 to 10 mph becoming light west in the evening.

    Low: 79 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. West wind 5 to 10 mph becoming southwest in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 4pm. Partly sunny, with a high near 89. Southwest wind 5 to 10 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 89. South wind 5 to 15 mph.
Sunday Night
Partly cloudy, with a low around 81. South wind around 10 mph.
Monday
Mostly sunny, with a high near 90. Southwest wind around 10 mph.
Monday Night
Mostly clear, with a low around 81. Southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 90. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 79. Southwest wind 5 to 10 mph becoming light west in the evening.
Wednesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. West wind 5 to 10 mph becoming southwest in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. Southwest wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. Southwest wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 90. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Port Sulphur LA
 29.48°N 89.69°W
Last Update:
3:36 am CDT Jun 20, 2026
Forecast Valid:
4am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation