Today | Weather | Friday, September 18, 2026

Weather in Laredo, Texas

05:38 AM
Now
Cloudy Night
79° F
Feels Like 88°
Precipitation 49 %
Wind 6 mph
Humidity 85 %
Today
Sunny with a Chance of Thunderstorms
Day 95°
Night 75°
Precipitation 55 %
Wind 7 mph
UV Index (0 - 11+) 4

Laredo Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Night

Day

95°

Night

73°

Wind

8 mph

Precipitation

23 %

Air Quality in Laredo

NOW
20 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.29 µg/m³
PM10 3.69 µg/m³
O3 0.022 ppm
NO2 2.2 ppb
SO2 0.5 ppb
CO 0.13 ppm
NH3 4.84 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)
PM2.53.29 µg/m³
PM103.69 µg/m³
O342.28 µg/m³
NO24.16 µg/m³
SO21.41 µg/m³
CO145.2 µg/m³
NH34.84 µg/m³
NO0 µg/m³