Air Quality in San Lorenzo, United States

Rain
15.7°C · 67.5% humidity
15.7°
Feels 15.7°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
78 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 9pm
15
14
16 12am
16
16
16 3am
16
16
28 6am
41
41
66 9am
66
66
66 12pm
28
41
28 3pm
16
16
16 6pm
16
16
Station readings
15
15
14
CAMS model adj -9
25
25
25
25
25
25
25
25
25
37
50
50
75
75
75
75
37
50
37
25
25
25
25
25
AD 728×90

PM2.5 Trend (24h)

26h · 107 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 San Lorenzo?

Temperature & Precipitation

PM2.53.35 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (78 stations within 25 km)
3.35
Median
3.66
Average
2.38
Low
25.74
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +5.6

What is the 7-day forecast for San Lorenzo?

04-10
17.6° 9.6°
3.94 mm
04-11
17.3° 8.9°
0.06 mm
04-12
12.5° 6.1°
2.25 mm
04-13
15.0° 3.9°
0.25 mm
04-14
18.4° 5.5°
04-15
21.2° 8.3°
04-16
20.3° 8.1°
Both models agree Avg diff: 2.5°C

Where are air quality stations near San Lorenzo?

13
Madison Park Academy HS
7.1 km PM2.5: 3.1 µg/m³
13
Lifers 105th
7.3 km PM2.5: 3.2 µg/m³
15
Esperanza ES
7.8 km PM2.5: 3.5 µg/m³
–
united-states-of-america-castro-valley-briar-ridge-drive
8.1 km PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³
16
Lifers 98th
8.3 km PM2.5: 3.9 µg/m³
21
Oakland - East, Alameda, California
8.3 km
21
Oakland - East, Alameda, California
8.3 km
15
Elmhurst United MS
8.5 km PM2.5: 3.5 µg/m³
14
Grass Valley ES
8.8 km PM2.5: 3.4 µg/m³
13
Highland Community ES
9.5 km PM2.5: 3.2 µg/m³

What cities are near San Lorenzo?

14 Hayward 14 Castro Valley 14 San Leandro 14 Alameda 13 Foster City 14 Moraga 15 San Ramon 14 Oakland 13 San Mateo 12 Belmont

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T00:27 UTC.