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

Hazardous Weather Conditions

Current conditions at

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

Lat: 29.84°NLon: 90.02°WElev: 0ft.

Thunderstorm

80°F

27°C

Humidity 85%
Wind Speed NE 3 mph
Barometer 29.96 in (1014.5 mb)
Dewpoint 75°F (24°C)
Visibility 9.00 mi
Heat Index85°F (29°C)
Last update 21 Aug 3:55 pm CDT
Extended Forecast for

Gretna LA

Heat Advisory August 22, 11:00am until August 22, 08:00pm
Extreme Heat Warning until August 21, 08:00pm
Flash Flood Warning until August 21, 06:15pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
Flash Flood Warning
  •  
    Extreme Heat Warning until August 21, 08:00pm
    Flash Flood Warning until August 21, 06:15pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 95 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 81. West wind around 5 mph becoming north in the evening.

    Low: 81 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 110. North wind around 5 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 81. South wind around 5 mph becoming west after midnight.

    Low: 81 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98. Northwest wind around 5 mph becoming east in the afternoon.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 81. South wind around 5 mph becoming calm in the evening.

    Low: 81 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 96. Calm wind becoming north around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 80. South wind around 5 mph becoming calm in the evening.

    Low: 80 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny and hot, with a high near 95. Heat index values as high as 110. West wind around 5 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 81. West wind around 5 mph becoming north in the evening.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 110. North wind around 5 mph.
Saturday Night
Mostly clear, with a low around 81. South wind around 5 mph becoming west after midnight.
Sunday
Sunny and hot, with a high near 98. Northwest wind around 5 mph becoming east in the afternoon.
Sunday Night
Partly cloudy, with a low around 81. South wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 96. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 80. South wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 94. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 80. Southwest wind around 5 mph.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming west around 5 mph in the morning.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. Southwest wind around 5 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming west around 5 mph in the morning.
Thursday 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.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming northwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gretna LA
 29.92°N 90.04°W
Last Update:
2:17 pm CDT Aug 21, 2026
Forecast Valid:
4pm CDT Aug 21, 2026-6pm CDT Aug 28, 2026
 
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