Air Quality in Castro Valley, United States

Rain
15.7°C · 67.5% humidity
15.7°
Feels 15.7°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
63 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
17 7pm
16
15
17 10pm
17
17
17 1am
17
17
17 4am
17
29
42 7am
42
67
67 10am
67
67
29 1pm
42
29
17 4pm
17
17
Station readings
17
16
15
CAMS model adj -8
25
25
25
25
25
25
25
25
25
25
25
37
50
50
75
75
75
75
37
50
37
25
25
25
AD 728×90

PM2.5 Trend (24h)

26h · 106 stations
67.5%
Humidity
37.6 km/h
Wind WNW
1009.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Castro Valley?

Temperature & Precipitation

PM2.53.53 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (63 stations within 25 km)
3.53
Median
3.57
Average
2.34
Low
7.96
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +5.4
Both models agree Avg diff: 2.5°C

Where are air quality stations near Castro Valley?

–
united-states-of-america-castro-valley-briar-ridge-drive
3.4 km PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³
16
Grass Valley ES
7.4 km PM2.5: 3.8 µg/m³
13
Madison Park Academy HS
8.8 km PM2.5: 3.2 µg/m³
15
Esperanza ES
9.1 km PM2.5: 3.7 µg/m³
15
Elmhurst United MS
9.1 km PM2.5: 3.6 µg/m³
21
Oakland - East, Alameda, California
9.1 km
15
Lifers 105th
9.2 km PM2.5: 3.5 µg/m³
18
Oakland Academy of Knowledge (OAK) ES
9.5 km PM2.5: 4.3 µg/m³
27
Lifers 98th
9.6 km PM2.5: 6.4 µg/m³
15
Rudsdale Continuation HS
9.9 km PM2.5: 3.7 µg/m³

What cities are near Castro Valley?

15 Hayward 15 San Lorenzo 15 San Leandro 15 San Ramon 15 Moraga 14 Alameda 17 Pleasanton 14 Oakland 14 Orinda 15 Foster City

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:41 UTC.