Today | Weather | Wednesday, February 25, 2026

Weather in Antioch, California

07:49 PM
Now
Cloudy Night
61° F
Feels Like 57°
Precipitation 0 %
Wind 7 mph
Humidity 86 %
Today
Cloudy Night
Day 64°
Night 54°
Precipitation 7 %
Wind 7 mph

Antioch Weather Forecast Updated

21 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 25, 2025)
Cloudy Weather

Day

66°

Night

43°

Wind

7 mph

UV Index

4

Precipitation

0 %

Air Quality in Antioch

NOW
25 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 6.03 µg/m³
PM10 9.58 µg/m³
O3 0.027 ppm
NO2 3.7 ppb
SO2 0.4 ppb
CO 0.14 ppm
NH3 0.08 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)
PM2.56.03 µg/m³
PM109.58 µg/m³
O353.06 µg/m³
NO26.99 µg/m³
SO21.08 µg/m³
CO165.36 µg/m³
NH30.08 µg/m³
NO0 µg/m³