Today | Weather | Sunday, September 20, 2026

Weather in Laredo, Texas

11:58 PM
Today
Cloudy Night
Day 100°
Night 79°
Precipitation 10 %
Wind 9 mph

Laredo Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 20, 2025)
Cloudy Night

Day

97°

Night

75°

Wind

9 mph

Precipitation

25 %

Air Quality in Laredo

NOW
29 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.49 µg/m³
PM10 5.45 µg/m³
O3 0.032 ppm
NO2 1.3 ppb
SO2 0.3 ppb
CO 0.09 ppm
NH3 1.29 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)
PM2.52.49 µg/m³
PM105.45 µg/m³
O362.43 µg/m³
NO22.42 µg/m³
SO20.9 µg/m³
CO104.57 µg/m³
NH31.29 µg/m³
NO0 µg/m³