Today | Weather | Monday, December 29, 2025

Weather in Berkeley, California

09:07 PM
Now
Night
52° F
Feels Like 50°
Precipitation 0 %
Wind 7 mph
Humidity 53 %
Today
Night
Day 63°
Night 39°
Precipitation 0 %
Wind 7 mph

Berkeley Weather Forecast Updated

15 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 29, 2024)
Rainy Weather

Day

57°

Night

41°

Wind

12 mph

UV Index

2

Precipitation

100 %

Air Quality in Berkeley

NOW
28 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.29 µg/m³
PM10 11.21 µg/m³
O3 0.030 ppm
NO2 9.5 ppb
SO2 1.2 ppb
CO 0.20 ppm
NH3 0.62 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)
PM2.56.29 µg/m³
PM1011.21 µg/m³
O358.31 µg/m³
NO217.8 µg/m³
SO23.26 µg/m³
CO230.62 µg/m³
NH30.62 µg/m³
NO0 µg/m³