Today | Weather | Thursday, November 20, 2025

Active Weather Warnings

Dense Fog Advisory

Weather in New Orleans, Louisiana

06:46 AM

Now

70° F

Feels Like 64°

Precipitation 0 %

Wind 17 mph

UV Index (0 - 11+) 0

Humidity 80 %

Today

Day 79°

Night 70°

Precipitation 0 %

Wind 16 mph

UV Index (0 - 11+) 4

New Orleans Weather Forecast Updated

12 minutes ago

Last updated on November 20, 2025 6:33 AM

Weather Forecast History

Last Year's Weather on This Day (November 20, 2024)

Day

72°

Night

54°

Wind

15 mph

Precipitation

2 %

Air Quality in New Orleans

NOW

39 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 8.66 µg/m³

PM₁₀ 15.82 µg/m³

O₃ 0.042 ppm

NO₂ 0.1 ppb

SO₂ 0.2 ppb

CO 0.10 ppm

NH₃ 0 µg/m³

NO 0 µg/m³

PM_2.5 – 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)

PM_2.5 – 8.66 µg/m³

PM₁₀ – 15.82 µg/m³

O₃ – 83.21 µg/m³

NO₂ – 0.2 µg/m³

SO₂ – 0.4 µg/m³

CO – 114.24 µg/m³

NH₃ – 0 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for New Orleans

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued November 20 at 4:29AM CST until November 20 at 9:00AM CST by NWS New Orleans LA

Nov 20, 4:29 AM → Nov 20, 9:00 AM

WHAT: Visibility one quarter mile or less in dense fog.

WHERE: Portions of southeast Louisiana and southern Mississippi.

WHEN: Until 9 AM CST this morning.

IMPACTS: Low visibility could make driving conditions hazardous.

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If driving, slow down, use your low beam headlights, and leave plenty of distance ahead of you.

Updated: Nov 20, 6:33 AM Source: NWS Alert