Today | Weather | Sunday, November 1, 2026

Weather in Fairfield, California

10:56 AM
Now
Cloudy Weather
63° F
Feels Like 66°
Precipitation 2 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 55 %
Today
Cloudy Weather
Day 70°
Night 43°
Precipitation 5 %
Wind 6 mph
UV Index (0 - 11+) 3

Fairfield Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 1, 2025)
Cloudy Night

Day

77°

Night

46°

Wind

6 mph

Precipitation

0 %

Air Quality in Fairfield

NOW
46 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.85 µg/m³
PM10 1.85 µg/m³
O3 0.050 ppm
NO2 1 ppb
SO2 0.3 ppb
CO 0.11 ppm
NH3 0.04 µg/m³
NO 0.3 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)
PM2.5 – 0.85 µg/m³
PM10 – 1.85 µg/m³
O3 – 97.87 µg/m³
NO2 – 1.88 µg/m³
SO2 – 0.75 µg/m³
CO – 124.76 µg/m³
NH3 – 0.04 µg/m³
NO – 0.3 µg/m³