Today | Weather | Tuesday, April 21, 2026

Weather in Livermore, California

04:36 PM
Now
Stormy Weather
57° F
Feels Like 50°
Precipitation 56 %
Wind 14 mph
UV Index (0 - 11+) 1
Humidity 71 %
Today
Sunny with a Chance of Thunderstorms
Day 61°
Night 48°
Precipitation 97 %
Wind 10 mph
UV Index (0 - 11+) 3

Livermore Weather Forecast Updated

Last updated on

Air Quality in Livermore

NOW
48 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.51 µg/m³
PM10 1.42 µg/m³
O3 0.052 ppm
NO2 0.1 ppb
SO2 0.2 ppb
CO 0.12 ppm
NH3 0 µg/m³
NO 0.05 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)
PM2.50.51 µg/m³
PM101.42 µg/m³
O3102.36 µg/m³
NO20.28 µg/m³
SO20.41 µg/m³
CO141.04 µg/m³
NH30 µg/m³
NO0.05 µg/m³