Today | Weather | Tuesday, August 11, 2026

Weather in Concord, California

06:53 AM
Now
Cloudy Weather
61° F
Feels Like 59°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 79 %
Today
Sunny Weather
Day 86°
Night 59°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

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.

Concord Weather Forecast Updated

50 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 11, 2025)
Cloudy Night

Day

88°

Night

59°

Wind

13 mph

Precipitation

0 %

Air Quality in Concord

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.23 µg/m³
PM10 16.25 µg/m³
O3 0.032 ppm
NO2 0.7 ppb
SO2 0.4 ppb
CO 0.07 ppm
NH3 0 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)
PM2.55.23 µg/m³
PM1016.25 µg/m³
O363.69 µg/m³
NO21.38 µg/m³
SO20.97 µg/m³
CO78.94 µg/m³
NH30 µg/m³
NO0 µg/m³