Cupertino City Hall Air Quality
Monitoring Station
· Cupertino, United States
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
14
12am
14
21
21
3am
21
21
21
6am
21
21
21
9am
21
14
14
12pm
14
14
—
3pm
—
—
—
6pm
—
—
—
9pm
—
—
Station readings
14
14
CAMS model
adj -13
27
34
34
34
34
34
34
34
34
34
34
27
27
27
27
Air Quality Forecast (24h)
PM2.53.4 µg/m³
✓ WHO
Good
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Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T03:40 UTC.