Air Quality in Downey, United States

Windy
27.5°C · 28.6% humidity
27.5°
Feels 27.5°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
93 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
45 2pm
45
45
39 5pm
41
42
43 8pm
43
44
44 11pm
44
45
45 2am
45
45
45 5am
45
45
45 8am
45
45
45 11am
45
45
Station readings
42
46
50
25
CAMS model adj -9
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

48h · 1 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.

28.6%
Humidity
60.6 km/h
Wind WSW
1008.7 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
39
9.43 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Downey?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.59.43 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (93 stations within 25 km)
9.43
Median
9.1
Average
2.22
Low
12.03
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +1.4

What is the 7-day forecast for Downey?

06-09
27.5° 19.1°
06-10
28.3° 19.6°
06-11
25.7° 19.4°
06-12
27.4° 19.9°
0.06 mm
06-13
30.4° 20.9°
06-14
27.7° 21.5°
06-15
23.7° 18.5°
Both models agree Avg diff: 2.9°C

Where are air quality stations near Downey?

43
Elizabeth Learning Ctr (3548)
5.4 km PM2.5: 10.4 µg/m³
41
Bryson ES (2589)
5.6 km PM2.5: 9.9 µg/m³
43
Maywood ES
7.6 km PM2.5: 10.3 µg/m³
42
State ES (6918)
7.8 km PM2.5: 10.1 µg/m³
35
Montara Ave ES (6878)
7.9 km PM2.5: 8.3 µg/m³
38
San Antonio ES (4641)
8.7 km PM2.5: 9.2 µg/m³
39
Weigand ES (7634)
9.0 km PM2.5: 9.4 µg/m³
39
Jordan HS (8721)
9.0 km PM2.5: 9.3 µg/m³
42
Imperial Hwy.
9.2 km PM2.5: 10.1 µg/m³
39
Middleton ES (5301)
9.9 km PM2.5: 9.4 µg/m³

What cities are near Downey?

40 Bell Gardens 40 Santa Fe Springs 42 Cudahy 40 Pico Rivera 38 Paramount 41 Bell 38 Bellflower 40 West Whittier-Los Nietos 38 Lynwood 38 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 2026-06-09T00:40 UTC.