Today | Weather | Sunday, September 20, 2026

Weather in Stockton, California

06:56 PM
Now
Cloudy Weather
75° F
Feels Like 73°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 0
Humidity 47 %
Today
Cloudy Weather
Day 82°
Night 55°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 5

Stockton Weather Forecast Updated

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

Day

90°

Night

61°

Wind

7 mph

Precipitation

1 %

Air Quality in Stockton

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.25 µg/m³
PM10 12.12 µg/m³
O3 0.043 ppm
NO2 2.7 ppb
SO2 0.3 ppb
CO 0.14 ppm
NH3 0.2 µg/m³
NO 0.07 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)
PM2.54.25 µg/m³
PM1012.12 µg/m³
O384.63 µg/m³
NO25.11 µg/m³
SO20.72 µg/m³
CO157.21 µg/m³
NH30.2 µg/m³
NO0.07 µg/m³