Air Quality in Lake Forest, United States
Windy
19.1°C · 54.2% humidity
19.1°
Feels 19.1°
13
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Lake Forest's air quality — share it
AQI Forecast
Calibrated
3
6pm
0
0
13
9pm
14
10
7
12am
5
4
3
3am
2
1
1
6am
1
0
0
9am
0
0
0
12pm
0
3
3
3pm
23
23
Station readings
4
CAMS model
adj -31
34
27
27
25
25
25
24
24
24
24
24
24
24
24
24
25
25
25
25
27
34
34
54
54
Air Quality Index Trend
29h · 1 stnLake Forest's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
54.2%
Humidity
60.4 km/h
Wind NW
1009.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.18 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Lake Forest?
Temperature & Precipitation
PM2.5 Trend
29h · 1 stationPM2.53.18 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
3.18
Median
4.63
Average
1.0
Low
6.7
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +3.1
What is the 7-day forecast for Lake Forest?
06-09
25.7° 13.3°
0.25 mm
06-10
16.6° 13.8°
19.25 mm
06-11
20.4° 14.4°
06-12
24.7° 16.6°
10.25 mm
06-13
27.9° 19.2°
4.25 mm
06-14
23.0° 13.4°
06-15
27.0° 21.8°
0.19 mm
Both models agree
Avg diff: 6.5°C
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:18 UTC.