Today | Weather | Friday, November 21, 2025

Weather in Richardson, Texas

07:27 PM
Now
Night
72° F
Feels Like 70°
Precipitation 0 %
Wind 6 mph
Humidity 42 %
Today
Partly Sunny with Showers
Day 81°
Night 50°
Precipitation 49 %
Wind 6 mph
UV Index (0 - 11+) 3

Richardson Weather Forecast Updated

37 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 21, 2024)
Night

Day

70°

Night

45°

Wind

4 mph

Precipitation

0 %

Air Quality in Richardson

NOW
23 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.43 µg/m³
PM10 2.67 µg/m³
O3 0.024 ppm
NO2 4.3 ppb
SO2 0 ppb
CO 0.14 ppm
NH3 1.73 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)
PM2.51.43 µg/m³
PM102.67 µg/m³
O347.87 µg/m³
NO28.15 µg/m³
SO20.04 µg/m³
CO157.38 µg/m³
NH31.73 µg/m³
NO0 µg/m³