Today | Weather | Saturday, September 19, 2026

Weather in Richmond, California

09:10 AM
Now
Cloudy Weather
61° F
Feels Like 61°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 1
Humidity 87 %
Today
Cloudy Weather
Day 73°
Night 57°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 5

Richmond Weather Forecast Updated

6 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 19, 2025)
Cloudy Night

Day

70°

Night

61°

Wind

7 mph

Precipitation

1 %

Air Quality in Richmond

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.04 µg/m³
PM10 20.91 µg/m³
O3 0.046 ppm
NO2 0.3 ppb
SO2 0.3 ppb
CO 0.12 ppm
NH3 0 µg/m³
NO 0.03 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)
PM2.55.04 µg/m³
PM1020.91 µg/m³
O390.96 µg/m³
NO20.64 µg/m³
SO20.77 µg/m³
CO136.02 µg/m³
NH30 µg/m³
NO0.03 µg/m³