Today | Weather | Wednesday, April 15, 2026

Weather in Fairfield, California

09:56 AM
Now
Cloudy Weather
55° F
Feels Like 55°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 3
Humidity 79 %
Today
Cloudy Weather
Day 70°
Night 48°
Precipitation 1 %
Wind 12 mph
UV Index (0 - 11+) 5

Fairfield Weather Forecast Updated

13 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 15, 2025)
Cloudy Weather

Day

68°

Night

52°

Wind

15 mph

UV Index

8

Precipitation

5 %

Air Quality in Fairfield

NOW
57 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.84 µg/m³
PM10 3.04 µg/m³
O3 0.056 ppm
NO2 0.5 ppb
SO2 0.3 ppb
CO 0.12 ppm
NH3 0.05 µg/m³
NO 0.09 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.50.84 µg/m³
PM103.04 µg/m³
O3110.2 µg/m³
NO21.02 µg/m³
SO20.77 µg/m³
CO141.32 µg/m³
NH30.05 µg/m³
NO0.09 µg/m³