Air Quality in Downey, United States

Clear
29.3°C · 39.3% humidity
29.3°
Feels 29.3°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
26 1pm
12
27
26 4pm
27
27
27 7pm
27
27
27 10pm
15
15
15 1am
15
15
15 4am
27
27
27 7am
15
27
27 10am
27
27
Station readings
26
12
27
CAMS model adj -39
66
66
66
66
66
66
66
66
66
66
54
54
54
54
54
54
66
66
66
54
66
66
66
66
AD 728×90

Air Quality Index Trend

47h · 2 stn

Downey's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

39.3%
Humidity
31.2 km/h
Wind SSW
1010.1 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
26
6.34 µg/m³
PM10▲
60
73.05 µg/m³
050100150200300500

What is the weather forecast for Downey?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.56.34 µg/m³ ✓ WHO
Good
PM1073.05 µg/m³
Moderate
UV INDEX17.4
Extreme
AD 300×250
Station readings (2 stations within 25 km)
6.34
Median
6.03
Average
2.06
Low
10.0
High
PM2.5 µg/m³ · Model: 23.15 · Bias: +16.8

What is the 7-day forecast for Downey?

08-03
30.0° 23.2°
08-04
32.4° 24.7°
08-05
32.3° 23.7°
08-06
30.3° 20.5°
08-07
29.9° 22.3°
08-08
29.7° 21.6°
08-09
29.9° 19.8°
Both models agree Avg diff: 2.0°C

Where are air quality stations near Downey?

55
Elizabeth Learning Ctr (3548)
5.4 km PM2.5: 14.1 µg/m³
55
Bryson ES (2589)
5.6 km PM2.5: 13.8 µg/m³
54
Maywood ES
7.6 km PM2.5: 13.6 µg/m³
54
State ES (6918)
7.8 km PM2.5: 13.7 µg/m³
50
Montara Ave ES (6878)
7.9 km PM2.5: 11.9 µg/m³
52
San Antonio ES (4641)
8.7 km PM2.5: 12.7 µg/m³
54
Weigand ES (7634)
9.0 km PM2.5: 13.6 µg/m³
54
Jordan HS (8721)
9.0 km PM2.5: 13.5 µg/m³
53
Middleton ES (5301)
9.9 km PM2.5: 13.0 µg/m³
53
Graham ES (4219)
10.0 km PM2.5: 13.0 µg/m³

What cities are near Downey?

26 Bell Gardens 27 Santa Fe Springs 25 Cudahy 28 Pico Rivera 66 Paramount 25 Bell 66 Bellflower 28 West Whittier-Los Nietos 25 Lynwood 66 East Rancho Dominguez
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:56 UTC.