Air Quality in San Lorenzo, United States

Clear
26.5°C · 31.9% humidity
26.5°
Feels 26.5°
69
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 6pm
54
54
69 9pm
65
62
60 12am
58
57
56 3am
55
55
55 6am
55
54
54 9am
34
34
34 12pm
54
54
54 3pm
54
54
AD 728×90

Air Quality Index Trend

45h · 101 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. Current PM2.5 concentration in San Lorenzo is 1.4× the WHO 24-hour guideline of 15 µg/m³.

31.9%
Humidity
28.1 km/h
Wind SW
1010.6 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
69
20.75 µg/m³
PM10
56
66.15 µg/m³
050100150200300500

What is the weather forecast for San Lorenzo?

Temperature & Precipitation

PM2.5 Trend

45h · 101 stations
PM2.520.75 µg/m³ ×1.4 WHO
Moderate
PM1066.15 µg/m³
Moderate
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for San Lorenzo?

08-03
29.2° 12.9°
08-04
24.2° 12.9°
08-05
32.3° 11.6°
08-06
30.4° 11.9°
08-07
26.7° 14.0°
08-08
28.9° 13.8°
08-09
33.0° 11.9°
Both models agree Avg diff: 3.1°C

Where are air quality stations near San Lorenzo?

32
Madison Park Academy HS
7.1 km PM2.5: 7.6 µg/m³
40
Lifers 105th
7.3 km PM2.5: 9.5 µg/m³
35
Esperanza ES
7.8 km PM2.5: 8.4 µg/m³
45
Lifers 98th
8.3 km PM2.5: 10.9 µg/m³
42
Oakland - East, Alameda, California
8.3 km PM2.5: 10.1 µg/m³
35
Brookfield ES
8.4 km PM2.5: 8.4 µg/m³
26
Elmhurst United MS
8.5 km PM2.5: 6.2 µg/m³
42
Grass Valley ES
8.8 km PM2.5: 10.2 µg/m³
33
Highland Community ES
9.5 km PM2.5: 7.9 µg/m³
31
Castlemont High School
9.8 km PM2.5: 7.5 µg/m³

What cities are near San Lorenzo?

68 Hayward 68 Castro Valley 96 San Leandro 4 Alameda 64 Foster City 96 Moraga 68 San Ramon 4 Oakland 91 San Mateo 64 Belmont
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T04:00 UTC.