Air Quality in Alum Rock, United States

Windy
31.9°C · 17.8% humidity
31.9°
Feels 31.9°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
27 11am
27
27
23 2pm
27
34
34 5pm
34
34
34 8pm
34
34
34 11pm
34
34
34 2am
34
34
34 5am
34
34
34 8am
34
34
AD 728×90

Air Quality Index Trend

45h · 76 stn

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

17.8%
Humidity
53.1 km/h
Wind NW
1006.5 hPa
Pressure
29.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
23
5.36 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Alum Rock?

Temperature & Precipitation

PM2.5 Trend

45h · 76 stations
PM2.55.36 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX29.9
Extreme
AD 300×250
Station readings (5 stations within 25 km)
5.36
Median
5.44
Average
4.62
Low
6.41
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +2.0

What is the 7-day forecast for Alum Rock?

07-21
29.2° 15.5°
07-22
31.9° 18.2°
07-23
28.5° 22.7°
07-24
35.3° 16.8°
07-25
27.6° 19.5°
07-26
34.8° 14.8°
07-27
31.6° 17.8°
Both models agree Avg diff: 4.8°C

Where are air quality stations near Alum Rock?

22
Cristo Rey Jesuit High School
3.7 km PM2.5: 5.3 µg/m³
49
San Jose-Knox Avenue, Santa Clara, California
3.7 km PM2.5: 11.8 µg/m³
62
San Jose-Knox Avenue, Santa Clara, California
3.7 km PM2.5: 17.3 µg/m³
56
San Jose - Jackson St, Santa Clara, California
6.3 km PM2.5: 14.5 µg/m³
21
Cupertino City Hall
18.6 km PM2.5: 5.0 µg/m³
27
JFK Middle School
20.7 km PM2.5: 6.4 µg/m³
19
Environment Education Center
21.7 km PM2.5: 4.6 µg/m³
24
N Foothhill Blvd
21.9 km PM2.5: 5.8 µg/m³
27
Acterra!
25.5 km PM2.5: 6.4 µg/m³

What cities are near Alum Rock?

23 San Jose 23 Milpitas 23 Santa Clara 23 Campbell 23 Sunnyvale 21 Cupertino 22 Los Gatos 23 Saratoga 24 Mountain View 24 Los Altos
Get AQI alerts for Alum Rock

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T21:32 UTC.