Today | Weather | Wednesday, December 31, 2025

Weather in Concord, California

12:21 PM
Now
Cloudy Weather
50° F
Feels Like 48°
Precipitation 47 %
Wind 7 mph
UV Index (0 - 11+) 1
Humidity 85 %
Today
Rainy Weather
Day 50°
Night 45°
Precipitation 96 %
Wind 7 mph
UV Index (0 - 11+) 1

Concord Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 31, 2024)
Cloudy Weather

Day

57°

Night

39°

Wind

4 mph

UV Index

2

Precipitation

0 %

Air Quality in Concord

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

Pollutant Concentrations:

PM2.5 7.28 µg/m³
PM10 8.68 µg/m³
O3 0.030 ppm
NO2 9.6 ppb
SO2 0.3 ppb
CO 0.21 ppm
NH3 0.15 µg/m³
NO 1.24 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)
PM2.57.28 µg/m³
PM108.68 µg/m³
O358.04 µg/m³
NO217.99 µg/m³
SO20.75 µg/m³
CO245.82 µg/m³
NH30.15 µg/m³
NO1.24 µg/m³