Today | Weather | Friday, October 9, 2026

Weather in Livermore, California

08:42 PM
Now
Rainy Night
64° F
Feels Like 61°
Precipitation 45 %
Wind 9 mph
Humidity 71 %
Today
Rainy Night
Day 79°
Night 57°
Precipitation 49 %
Wind 9 mph

Livermore Weather Forecast Updated

27 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Cloudy Night

Day

73°

Night

54°

Wind

6 mph

Precipitation

5 %

Air Quality in Livermore

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.18 µg/m³
PM10 21.82 µg/m³
O3 0.042 ppm
NO2 0.5 ppb
SO2 0.4 ppb
CO 0.10 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)
PM2.5 – 7.18 µg/m³
PM10 – 21.82 µg/m³
O3 – 83.05 µg/m³
NO2 – 1.01 µg/m³
SO2 – 1.08 µg/m³
CO – 120.02 µg/m³
NH3 – 0 µg/m³
NO – 0 µg/m³