Lake Gregory (Crestline), San Bernardino Air Quality
Monitoring Station
· Highland, United States
51
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Last Reading
Nearby Monitoring Stations
GoodModerateUSGUnhealthyVery UnhealthyHazardous
AQI Forecast
Calibrated
48
9pm
51
33
33
12am
33
33
40
3am
40
40
60
6am
60
60
60
9am
60
60
—
12pm
—
—
—
3pm
—
—
—
6pm
—
—
Station readings
48
51
CAMS model
adj +6
34
34
27
27
27
27
34
34
34
54
54
54
54
54
54
Air Quality Forecast (24h)
PM2.512.1 µg/m³
✓ WHO
Moderate
Nearby Monitoring Stations
Nearby Cities
Station data from AQICN. AQI forecast from ECMWF CAMS. AQI calculated using US EPA standard. Updated 2026-06-09T00:42 UTC.