Air Quality in Alum Rock, United States

Partly Cloudy
13.4°C · 60.4% humidity
13.4°
Feels 13.4°
22
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast
27 5pm
34
34
22 8pm
25
28
30 11pm
31
32
32 2am
33
26
26 5am
27
27
27 8am
25
25
25 11am
24
24
24 2pm
24
24
AD 728×90

Air Quality Index Trend

45h · 82 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.

60.4%
Humidity
19.7 km/h
Wind WSW
1017.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
22
5.35 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Alum Rock?

Temperature & Precipitation

PM2.5 Trend

45h · 82 stations
PM2.55.35 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (7 stations within 25 km)
5.35
Median
4.3
Average
3.1
Low
7.2
High
PM2.5 µg/m³ · Model: 7.0 · Bias: +1.6

What is the 7-day forecast for Alum Rock?

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: 4.2°C

Where are air quality stations near Alum Rock?

15
Cristo Rey Jesuit High School
3.7 km PM2.5: 3.7 µg/m³
40
San Jose-Knox Avenue, Santa Clara, California
3.7 km PM2.5: 9.6 µg/m³
49
San Jose-Knox Avenue, Santa Clara, California
3.7 km PM2.5: 11.8 µg/m³
30
San Jose - Jackson St, Santa Clara, California
6.3 km PM2.5: 7.2 µg/m³
14
Cupertino City Hall
18.6 km PM2.5: 3.3 µg/m³
16
JFK Middle School
20.7 km PM2.5: 3.9 µg/m³
13
Environment Education Center
21.7 km PM2.5: 3.1 µg/m³
14
N Foothhill Blvd
21.9 km PM2.5: 3.3 µg/m³
15
Acterra!
25.5 km PM2.5: 3.7 µg/m³

What cities are near Alum Rock?

23 San Jose 19 Milpitas 19 Santa Clara 18 Campbell 15 Sunnyvale 14 Cupertino 16 Los Gatos 15 Saratoga 15 Mountain View 15 Los Altos
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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 2026-06-09T03:06 UTC.