National Weather Service United States Department of Commerce
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Last Map Update: Mon, Sep 7, 2026 at 5:14:30 pm CDT

Hot and humid conditions are expected this Labor Day, with peak heat index values of 108 to 113 degrees across much of southeast Louisiana and southern Mississippi. A Heat Advisory is in effect from 11 AM to 7 PM. If your holiday plans include time outdoors, drink plenty of water, take frequent breaks in the shade or air conditioning, and limit strenuous activity during the hottest part of the day.
Hot and humid conditions will continue through the week, with daily chances for showers and thunderstorms. The greatest coverage of storms is expected Tuesday through Thursday, while heat index values remain near or above 100 degrees on most days. Keep an eye on the forecast if you have outdoor plans and be prepared for locally heavy rain and lightning.

 


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 Current Weather Observations...
Location Time
(CDT)
Weather Vsby.
(SM)
Temp.
(ºF)
Dewpt.
(ºF)
Hum.
(%)
Wind
(mph)
Wind Chill / Heat Index
(ºF)
Pres.
(in)
Baton Rouge LA16:53Thunder In The Vicinity \ Lightning Observed10767287NW 6-29.95
Biloxi MS15:55Clear10907764WNW 3103 [HI]29.86
Gulfport MS16:53Clear10877363W 795 [HI]29.90
Hammond LA16:55Lightning Observed10747394NNW 3-29.91
Houma LA16:47Clear7877566WNW 896 [HI]29.92
McComb MS16:53Lightning Observed10767287WSW 10G18-29.96
New Orleans LA16:53Cumulonimbus Clouds Observed10837679NNW 891 [HI]29.92
Slidell La16:53Clear10807687CALM-29.91