New Orleans is kicking off Sunday under clear skies and thick, soupy air, with mid-morning temperatures already in the mid-80s and humidity making it feel even hotter. Afternoon highs are forecast near 96°F, and the heat index is expected to surge well past 100 during the late morning and early afternoon. A Heat Advisory is in effect from 10 a.m. to 6 p.m. CDT, so residents are urged to limit long stretches outside during the hottest part of the day. Northwest winds will stay light, around 5 to 10 mph, which will not do much to take the edge off the heat.
Heat advisory and what it means
According to NWS New Orleans, heat index values could climb into the low 110s in the hottest spots, and some urban neighborhoods may flirt with heat warning criteria early this week. Forecasters cite highs in the mid-90s combined with very humid air, a setup that can be especially tough on people without reliable air conditioning. Those residents are urged to take extra precautions today. Employers and outdoor crews are advised to push the hardest work into the early morning or evening hours when temperatures are a bit more manageable.
Late-day storm chances
There is at least a small chance the atmosphere throws the city a brief cooldown late today. Scattered, short-lived storms are possible this afternoon and tonight, mainly between about 7 and 9 p.m., although coverage will be spotty and most neighborhoods will stay dry. The forecast keeps rain chances tonight around 20%, with rainfall totals of about a tenth to a quarter of an inch where storms actually form. Forecasters say storms will be more likely along and east of I-55 through midweek, and any that pop up could bring brief heavy rain and gusty winds.
Where to cool off
For those without air conditioning, the city operates a Heat Relief Map and staffed cooling centers where residents can escape the worst of the heat. See the Heat Relief Map from NOLA Ready for locations and hours. Bring water, and contact or check with the center before heading out to confirm current operating times.
Week ahead
The hot pattern is not going anywhere fast. Highs are expected to stay near the mid-90s from Monday through Thursday, with heat index readings that could reach about 109°F on Monday and Tuesday. The National Weather Service notes that additional heat advisories, or even heat warnings, are possible if the hottest projections play out. A weak low in the Gulf may slowly nudge deeper moisture westward later in the week, which would raise storm chances mainly for coastal Mississippi and areas east of I-55.
For now, the advice is straightforward: plan outdoor activities for early morning or evening, drink plenty of water, and check on older neighbors and anyone without air conditioning. If you notice signs of heat exhaustion such as heavy sweating, weakness, or dizziness, get to a cooler place and seek medical help if symptoms worsen.
