Today | Weather | Sunday, August 23, 2026
Active Weather Warnings

Weather in New Orleans, Louisiana

05:40 AM
Now
Cloudy Night
79° F
Feels Like 90°
Precipitation 0 %
Wind 6 mph
Humidity 98 %
Today
Sunny with a Chance of Thunderstorms
Day 99°
Night 79°
Precipitation 55 %
Wind 7 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

New Orleans Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (August 23, 2025)
Stormy Weather

Day

90°

Night

75°

Wind

7 mph

Precipitation

86 %

Air Quality in New Orleans

NOW
19 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.98 µg/m³
PM10 7.49 µg/m³
O3 0.020 ppm
NO2 0.2 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 0 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.52.98 µg/m³
PM107.49 µg/m³
O339.82 µg/m³
NO20.31 µg/m³
SO20.23 µg/m³
CO98.06 µg/m³
NH30 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for New Orleans

Moderate Expected Likely

Heat Advisory

Heat Advisory issued August 22 at 11:32AM CDT until August 23 at 8:00PM CDT by NWS New Orleans LA
Aug 23, 11:00 AM Aug 23, 8:00 PM
WHAT: Heat index values up to 112 degrees expected.

WHERE: Portions of southeast Louisiana and southern Mississippi.

WHEN: Until 8 PM CDT this evening and again from 11 AM to 8 PM CDT
Sunday.

IMPACTS: Hot temperatures and high humidity may cause heat
illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Updated: Aug 22, 7:25 PM Source: NWS Alert