New Orleans starts Tuesday clear and already warm near 84 degrees, but the afternoon heat will turn dangerous. Temperatures are expected to reach about 95, while the heat index could climb as high as 115.
Extreme Heat Warning Runs Through Tuesday Evening
An Extreme Heat Warning is in effect from 11 a.m. to 8 p.m. Tuesday, according to the National Weather Service in New Orleans. The warning means heat-related illnesses could increase significantly, especially for people spending time outdoors or without reliable air conditioning.
Mostly sunny skies and a west wind around 5 mph are expected during the afternoon, with only a 13% chance of rain. The regular forecast calls for heat-index values near 110, while the warning allows for isolated spots to feel closer to 115.
Warm Overnight Temperatures Offer Little Relief
Tuesday night will be partly cloudy, with a low around 80 and temperatures rising toward 82 overnight. Even after sunset, the heat index could remain as high as 109, leaving New Orleans with limited relief before Wednesday morning.
Residents should drink plenty of fluids, stay in air conditioning when possible, avoid prolonged sun exposure and check on relatives and neighbors. Children and pets should never be left in unattended vehicles, where temperatures can become lethal within minutes.
Scattered Storm Chances Return Later This Week
Wednesday will remain mostly sunny and hot, with a slight chance of showers and thunderstorms between 2 and 4 p.m. Thursday looks mostly sunny and dry, while Friday and Saturday bring small afternoon storm chances alongside highs near 95.
Sunday could be the hottest day of the stretch, with a sunny high near 96. A slight chance of showers and thunderstorms returns Monday, but the broader pattern stays hot, with overnight lows hovering around 79 to 80.
