Air Quality in San Lorenzo, United States

Clear
31.3°C · 17.7% humidity
31.3°
Feels 31.3°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
79 stations

Nearby Monitoring Stations

AQI Forecast
34 1pm
34
34
26 4pm
28
30
31 7pm
32
32
53 10pm
53
53
54 1am
54
34
34 4am
34
34
34 7am
34
34
34 10am
34
34
AD 728×90

Air Quality Index Trend

47h · 1 stn

San Lorenzo's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

17.7%
Humidity
37.4 km/h
Wind WSW
1006.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
26
6.18 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for San Lorenzo?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.56.18 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (79 stations within 25 km)
6.18
Median
6.23
Average
3.54
Low
8.34
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +1.2

What is the 7-day forecast for San Lorenzo?

07-21
32.4° 10.9°
07-22
31.3° 14.8°
07-23
28.7° 17.7°
07-24
35.5° 12.8°
07-25
29.4° 14.4°
07-26
33.7° 10.7°
07-27
32.7° 12.9°
Both models agree Avg diff: 5.1°C

Where are air quality stations near San Lorenzo?

25
Madison Park Academy HS
7.1 km PM2.5: 6.1 µg/m³
29
Lifers 105th
7.3 km PM2.5: 6.9 µg/m³
26
Esperanza ES
7.8 km PM2.5: 6.3 µg/m³
29
Lifers 98th
8.3 km PM2.5: 7.0 µg/m³
39
Oakland - East, Alameda, California
8.3 km PM2.5: 9.4 µg/m³
26
Oakland - East, Alameda, California
8.3 km PM2.5: 6.2 µg/m³
30
Brookfield ES
8.4 km PM2.5: 7.2 µg/m³
21
Elmhurst United MS
8.5 km PM2.5: 5.0 µg/m³
23
Grass Valley ES
8.8 km PM2.5: 5.4 µg/m³
25
Highland Community ES
9.5 km PM2.5: 5.9 µg/m³

What cities are near San Lorenzo?

25 Hayward 25 Castro Valley 26 San Leandro 27 Alameda 25 Foster City 25 Moraga 25 San Ramon 28 Oakland 24 San Mateo 24 Belmont
Get AQI alerts for San Lorenzo

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T23:18 UTC.