Today | Weather | Tuesday, February 24, 2026

Weather in Downey, California

06:30 PM
Now
Cloudy Night
70° F
Feels Like 68°
Precipitation 0 %
Wind 6 mph
Humidity 45 %
Today
Cloudy Weather
Day 79°
Night 52°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 5

Downey Weather Forecast Updated

48 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 24, 2025)
Sunny Weather

Day

77°

Night

52°

Wind

4 mph

UV Index

5

Precipitation

0 %

Air Quality in Downey

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.29 µg/m³
PM10 10.66 µg/m³
O3 0.047 ppm
NO2 0.2 ppb
SO2 0.1 ppb
CO 0.11 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)
PM2.54.29 µg/m³
PM1010.66 µg/m³
O391.85 µg/m³
NO20.44 µg/m³
SO20.36 µg/m³
CO124.58 µg/m³
NH30 µg/m³
NO0 µg/m³