Air Quality in San Lorenzo, United States

Rain
15.7°C · 67.5% humidity
15.7°
Feels 15.7°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
78 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
17 6pm
17
18
18 9pm
18
18
18 12am
18
18
18 3am
18
18
30 6am
43
43
68 9am
68
68
68 12pm
30
43
30 3pm
18
18
Station readings
17
17
CAMS model adj -7
25
25
25
25
25
25
25
25
25
25
25
25
37
50
50
75
75
75
75
37
50
37
25
25
AD 728×90

PM2.5 Trend (24h)

24h · 108 stations
67.5%
Humidity
37.6 km/h
Wind WNW
1009.7 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for San Lorenzo?

Temperature & Precipitation

PM2.54.17 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (78 stations within 25 km)
4.17
Median
4.16
Average
2.14
Low
13.97
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +3.2

What is the 7-day forecast for San Lorenzo?

04-09
19.5° 11.9°
0.25 mm
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°
Both models agree Avg diff: 2.5°C

Where are air quality stations near San Lorenzo?

15
Madison Park Academy HS
7.1 km PM2.5: 3.6 µg/m³
18
Lifers 105th
7.3 km PM2.5: 4.2 µg/m³
18
Esperanza ES
7.8 km PM2.5: 4.2 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
55
Lifers 98th
8.3 km PM2.5: 14.2 µg/m³
21
Oakland - East, Alameda, California
8.3 km
16
Oakland - East, Alameda, California
8.3 km
19
Oakland - East, Alameda, California
8.3 km
18
Elmhurst United MS
8.5 km PM2.5: 4.4 µg/m³
20
Grass Valley ES
8.8 km PM2.5: 4.7 µg/m³

What cities are near San Lorenzo?

18 Hayward 18 Castro Valley 17 San Leandro 16 Alameda 17 Foster City 18 Moraga 18 San Ramon 16 Oakland 12 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 2026-04-09T21:12 UTC.