Today | Weather | Saturday, August 1, 2026

Weather in Fairfield, California

06:56 AM
Now
Cloudy Weather
57° F
Feels Like 55°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 87 %
Today
Cloudy Weather
Day 99°
Night 59°
Precipitation 0 %
Wind 9 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Fairfield Weather Forecast Updated

4 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 1, 2025)
Night

Day

82°

Night

57°

Wind

13 mph

Precipitation

0 %

Air Quality in Fairfield

NOW
24 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.71 µg/m³
PM10 7.46 µg/m³
O3 0.025 ppm
NO2 0.6 ppb
SO2 0.2 ppb
CO 0.07 ppm
NH3 0.01 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)
PM2.52.71 µg/m³
PM107.46 µg/m³
O350.03 µg/m³
NO21.18 µg/m³
SO20.61 µg/m³
CO78.66 µg/m³
NH30.01 µg/m³
NO0 µg/m³