Air Quality in Downey, United States

Windy
29.3°C · 56.3% humidity
29.3°
Feels 32.9°
24
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
25 5am
25
7
24 8am
19
9
6 11am
4
3
2 2pm
2
1
1 5pm
1
0
0 8pm
0
0
7 11pm
7
7
7 2am
7
7
Station readings
25
25
CAMS model adj -59
83
83
66
66
66
54
54
54
54
54
54
54
54
54
54
54
54
54
66
66
66
66
66
66
AD 728×90

Air Quality Index Trend

46h · 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.

56.3%
Humidity
41.8 km/h
Wind WSW
1015.8 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
24
5.76 µg/m³
PM10▲
60
73.05 µg/m³
050100150200300500

What is the weather forecast for Downey?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations
PM2.55.76 µg/m³ ✓ WHO
Good
PM1073.05 µg/m³
Moderate
UV INDEX2.2
Moderate
AD 300×250
Station readings (3 stations within 25 km)
5.76
Median
5.55
Average
0.15
Low
11.0
High
PM2.5 µg/m³ · Model: 23.15 · Bias: +17.4

What is the 7-day forecast for Downey?

09-05
31.6° 25.0°
09-06
33.5° 21.5°
09-07
30.6° 23.9°
09-08
30.7° 20.6°
0.06 mm
09-09
33.5° 21.1°
09-10
29.8° 19.8°
09-11
34.9° 22.5°
Both models agree Avg diff: 3.6°C

Where are air quality stations near Downey?

35
Elizabeth Learning Ctr (3548)
5.4 km PM2.5: 8.3 µg/m³
32
Bryson ES (2589)
5.6 km PM2.5: 7.6 µg/m³
38
Maywood ES
7.6 km PM2.5: 9.0 µg/m³
38
State ES (6918)
7.8 km PM2.5: 9.0 µg/m³
29
Montara Ave ES (6878)
7.9 km PM2.5: 7.0 µg/m³
30
San Antonio ES (4641)
8.7 km PM2.5: 7.3 µg/m³
37
Weigand ES (7634)
9.0 km PM2.5: 8.9 µg/m³
34
Jordan HS (8721)
9.0 km PM2.5: 8.1 µg/m³
33
Middleton ES (5301)
9.9 km PM2.5: 8.0 µg/m³
32
Graham ES (4219)
10.0 km PM2.5: 7.6 µg/m³

What cities are near Downey?

24 Bell Gardens 25 Santa Fe Springs 23 Cudahy 25 Pico Rivera 23 Paramount 23 Bell 23 Bellflower 25 West Whittier-Los Nietos 23 Lynwood 23 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 2026-09-05T15:05 UTC.