Air Quality in Cupertino, United States

Partly Cloudy
27.1°C · 51.8% humidity
27.1°
Feels 29.2°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast
34 8am
34
27
19 11am
21
23
24 2pm
25
25
26 5pm
26
26
27 8pm
27
34
34 11pm
34
34
34 2am
34
34
34 5am
34
34
AD 728×90

Air Quality Index Trend

45h · 74 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.

51.8%
Humidity
27.7 km/h
Wind WNW
1016.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
19
4.46 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Cupertino?

Temperature & Precipitation

PM2.5 Trend

45h · 74 stations
PM2.54.46 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (10 stations within 25 km)
4.46
Median
5.77
Average
3.7
Low
11.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +2.0

What is the 7-day forecast for Cupertino?

09-05
31.5° 17.2°
09-06
31.6° 18.6°
09-07
34.4° 15.7°
09-08
32.8° 16.2°
09-09
30.5° 18.5°
09-10
28.9° 16.2°
09-11
27.4° 19.0°
Both models agree Avg diff: 3.7°C

Where are air quality stations near Cupertino?

18
Cupertino City Hall
0.6 km PM2.5: 4.3 µg/m³
25
JFK Middle School
2.1 km PM2.5: 6.1 µg/m³
16
Environment Education Center
2.9 km PM2.5: 3.8 µg/m³
20
N Foothhill Blvd
3.2 km PM2.5: 4.7 µg/m³
46
San Jose - Jackson St, Santa Clara, California
12.5 km PM2.5: 11.0 µg/m³
23
Acterra!
13.7 km PM2.5: 5.6 µg/m³
26
Cristo Rey Jesuit High School
15.2 km PM2.5: 6.3 µg/m³
15
Berkeley-Palo Alto
17.8 km PM2.5: 3.7 µg/m³
26
Andrew Hill High School
18.3 km PM2.5: 6.3 µg/m³
20
Boulder Creek Fire Station
23.3 km PM2.5: 4.9 µg/m³

What cities are near Cupertino?

21 Sunnyvale 21 Saratoga 30 Santa Clara 26 Campbell 22 Mountain View 21 Los Altos 22 Los Gatos 43 San Jose 29 Milpitas 17 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 2026-09-05T18:54 UTC.