Air Quality in Alum Rock, United States
Partly Cloudy
18.3°C · 58.4% humidity
18.3°
Feels 18.3°
29
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations
Nearby Monitoring Stations
AQI Forecast
Calibrated
20
5pm
20
19
10
8pm
10
23
23
11pm
10
23
23
2am
23
23
23
5am
35
48
48
8am
73
73
73
11am
48
23
35
2pm
23
23
Station readings
20
20
19
CAMS model
adj -2
25
25
12
12
12
25
25
12
25
25
25
25
25
37
50
50
75
75
75
50
25
37
25
25
PM2.5 Trend (24h)
23h · 75 stations58.4%
Humidity
25.2 km/h
Wind S
1011.3 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for Alum Rock?
Temperature & Precipitation
PM2.56.86 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
Station readings (5 stations within 25 km)
6.86
Median
7.57
Average
5.47
Low
10.77
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -1.0
What is the 7-day forecast for Alum Rock?
04-09
21.8° 15.0°
0.94 mm
04-10
18.7° 12.1°
2.94 mm
04-11
19.3° 11.5°
0.06 mm
04-12
13.2° 9.0°
6.75 mm
04-13
14.8° 7.6°
0.25 mm
04-14
17.7° 8.3°
04-15
20.5° 11.0°
Both models agree
Avg diff: 2.3°C
Where are air quality stations near Alum Rock?
42
Cristo Rey Jesuit High School
25
San Jose-Knox Avenue, Santa Clara, California
13
San Jose-Knox Avenue, Santa Clara, California
5
San Jose-Knox Avenue, Santa Clara, California
30
San Jose-Knox Avenue, Santa Clara, California
34
San Jose - Jackson St, Santa Clara, California
28
San Jose - Jackson St, Santa Clara, California
65
San Jose - Jackson St, Santa Clara, California
24
Andrew Hill High School
25
Cupertino City Hall
What cities are near Alum Rock?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:31 UTC.