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

Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. 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

79°F

26°C

Humidity 90%
Wind Speed S 3 mph
Barometer 30.07 in (1018.0 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 30 Jun 12:55 am CDT
Extended Forecast for

Marrero LA

Heat Advisory June 30, 11:00am until June 30, 06:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Clear, with a low around 79. Calm wind.

    Low: 79 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 106. Calm wind becoming north around 5 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 80. South wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 80 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 4pm, then showers and thunderstorms likely after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%.

    High: 92 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 7pm. Mostly clear, with a low around 80. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 80 °F

    T-storms
    Likely then
    Mostly Clear

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 92. Light east wind increasing to 5 to 10 mph in the morning.

    High: 92 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. Southeast wind around 5 mph becoming calm in the evening.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 79. South wind around 5 mph becoming calm in the evening.

    Low: 79 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 79. Calm wind.
Tuesday
Sunny, with a high near 94. Heat index values as high as 106. Calm wind becoming north around 5 mph.
Tuesday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 80. South wind around 5 mph becoming calm. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms before 4pm, then showers and thunderstorms likely after 5pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Northwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before 7pm. Mostly clear, with a low around 80. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 92. Light east wind increasing to 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 79. Southeast wind around 5 mph becoming calm in the evening.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 79. South wind around 5 mph becoming calm in the evening.
Independence Day
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 79. 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 southwest around 5 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. South wind around 5 mph becoming calm in the evening.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marrero LA
 29.88°N 90.12°W
Last Update:
1:01 am CDT Jun 30, 2026
Forecast Valid:
1am CDT Jun 30, 2026-6pm CDT Jul 6, 2026
 
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