Today | Weather | Saturday, November 22, 2025

Weather in Downey, California

06:56 PM
Now
Rainy Weather
63° F
Feels Like 61°
Precipitation 40 %
Wind 4 mph
Humidity 69 %
Today
Cloudy Weather
Day 70°
Night 50°
Precipitation 25 %
Wind 5 mph
UV Index (0 - 11+) 1

Downey Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 22, 2024)
Cloudy Night

Day

70°

Night

48°

Wind

4 mph

Precipitation

6 %

Air Quality in Downey

NOW
48 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.34 µg/m³
PM10 8.51 µg/m³
O3 0.052 ppm
NO2 1.1 ppb
SO2 0.3 ppb
CO 0.12 ppm
NH3 0.14 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)
PM2.54.34 µg/m³
PM108.51 µg/m³
O3101.96 µg/m³
NO22.08 µg/m³
SO20.83 µg/m³
CO134.24 µg/m³
NH30.14 µg/m³
NO0 µg/m³