Today | Weather | Saturday, September 5, 2026

Weather in Berkeley, California

05:17 PM
Now
Cloudy Weather
72° F
Feels Like 72°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 2
Humidity 48 %
Today
Sunny Weather
Day 73°
Night 57°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 7

Berkeley Weather Forecast Updated

20 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 5, 2025)
Cloudy Night

Day

70°

Night

59°

Wind

10 mph

Precipitation

0 %

Air Quality in Berkeley

NOW
41 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.54 µg/m³
PM10 7.61 µg/m³
O3 0.045 ppm
NO2 0.2 ppb
SO2 0.3 ppb
CO 0.15 ppm
NH3 0 µg/m³
NO 0.07 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)
PM2.52.54 µg/m³
PM107.61 µg/m³
O387.64 µg/m³
NO20.39 µg/m³
SO20.72 µg/m³
CO177.45 µg/m³
NH30 µg/m³
NO0.07 µg/m³