Air Quality in Cupertino, United States

Windy
19.8°C · 36.7% humidity
19.8°
Feels 19.8°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast
27 2pm
27
27
15 5pm
25
28
30 8pm
31
32
32 11pm
33
33
33 2am
34
27
27 5am
27
27
27 8am
25
25
25 11am
24
24
AD 728×90

Air Quality Index Trend

48h · 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.

36.7%
Humidity
68.8 km/h
Wind WNW
1017.0 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
15
3.54 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Cupertino?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.53.54 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
AD 300×250
Station readings (11 stations within 25 km)
3.54
Median
4.21
Average
3.11
Low
6.5
High
PM2.5 µg/m³ · Model: 6.15 · Bias: +2.6

What is the 7-day forecast for Cupertino?

06-09
21.9° 13.0°
06-10
28.4° 15.5°
06-11
31.2° 18.3°
06-12
27.4° 15.0°
06-13
24.2° 12.3°
06-14
26.9° 15.8°
06-15
25.0° 14.0°
Both models agree Avg diff: 4.0°C

Where are air quality stations near Cupertino?

15
Cupertino City Hall
0.6 km PM2.5: 3.5 µg/m³
18
JFK Middle School
2.1 km PM2.5: 4.4 µg/m³
13
Environment Education Center
2.9 km PM2.5: 3.1 µg/m³
15
N Foothhill Blvd
3.2 km PM2.5: 3.7 µg/m³
30
San Jose - Jackson St, Santa Clara, California
12.5 km PM2.5: 7.2 µg/m³
15
Acterra!
13.7 km PM2.5: 3.7 µg/m³
17
Cristo Rey Jesuit High School
15.2 km PM2.5: 4.0 µg/m³
49
San Jose-Knox Avenue, Santa Clara, California
16.2 km PM2.5: 11.8 µg/m³
40
San Jose-Knox Avenue, Santa Clara, California
16.2 km PM2.5: 9.6 µg/m³
14
Berkeley-Palo Alto
17.8 km PM2.5: 3.4 µg/m³

What cities are near Cupertino?

16 Sunnyvale 16 Saratoga 20 Santa Clara 19 Campbell 16 Mountain View 16 Los Altos 17 Los Gatos 26 San Jose 20 Milpitas 15 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 2026-06-09T00:39 UTC.