Today | Weather | Tuesday, June 9, 2026

Weather in Antioch, California

04:49 PM
Now
Sunny Weather
84° F
Feels Like 84°
Precipitation 0 %
Wind 13 mph
UV Index (0 - 11+) 3
Humidity 39 %
Today
Cloudy Weather
Day 84°
Night 61°
Precipitation 6 %
Wind 9 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Antioch Weather Forecast Updated

17 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (June 9, 2025)
Sunny Weather

Day

84°

Night

57°

Wind

12 mph

UV Index

11

Precipitation

0 %

Air Quality in Antioch

NOW
35 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.54 µg/m³
PM10 12.44 µg/m³
O3 0.038 ppm
NO2 0.4 ppb
SO2 0.4 ppb
CO 0.09 ppm
NH3 0.01 µg/m³
NO 0.18 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)
PM2.55.54 µg/m³
PM1012.44 µg/m³
O374.57 µg/m³
NO20.75 µg/m³
SO21.04 µg/m³
CO99.73 µg/m³
NH30.01 µg/m³
NO0.18 µg/m³