Air Quality in Cupertino, United States

Cloudy
15.0°C · 74.8% humidity
15.0°
Feels 15.0°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast
27 8pm
27
27
14 11pm
18
20
22 2am
24
25
25 5am
26
33
33 8am
34
34
34 11am
34
34
54 2pm
54
54
54 5pm
34
34
AD 728×90

Air Quality Index Trend

46h · 1 stn

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

74.8%
Humidity
22.7 km/h
Wind W
1012.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
14
3.29 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Cupertino?

Temperature & Precipitation

PM2.5 Trend

46h · 1 station
PM2.53.29 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (11 stations within 25 km)
3.29
Median
3.58
Average
2.08
Low
5.0
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +2.9

What is the 7-day forecast for Cupertino?

05-30
22.0° 15.0°
05-31
28.4° 18.6°
06-01
28.1° 14.0°
06-02
23.5° 13.9°
06-03
28.3° 10.5°
06-04
28.6° 11.7°
06-05
26.2° 13.2°
Both models agree Avg diff: 3.7°C

Where are air quality stations near Cupertino?

13
Cupertino City Hall
0.6 km PM2.5: 3.2 µg/m³
17
JFK Middle School
2.1 km PM2.5: 4.0 µg/m³
13
Environment Education Center
2.9 km PM2.5: 3.2 µg/m³
13
N Foothhill Blvd
3.2 km PM2.5: 3.2 µg/m³
50
San Jose - Jackson St, Santa Clara, California
12.5 km PM2.5: 12.0 µg/m³
13
Acterra!
13.7 km PM2.5: 3.1 µg/m³
14
Cristo Rey Jesuit High School
15.2 km PM2.5: 3.3 µg/m³
17
San Jose-Knox Avenue, Santa Clara, California
16.2 km PM2.5: 4.1 µg/m³
29
San Jose-Knox Avenue, Santa Clara, California
16.2 km PM2.5: 7.0 µg/m³
9
Berkeley-Palo Alto
17.8 km PM2.5: 2.1 µg/m³

What cities are near Cupertino?

14 Sunnyvale 15 Saratoga 16 Santa Clara 16 Campbell 13 Mountain View 13 Los Altos 15 Los Gatos 19 San Jose 16 Milpitas 10 Palo Alto
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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 2026-05-30T06:06 UTC.