What is the air quality in Lake Forest today?

The current Air Quality Index (AQI) in Lake Forest is 40 (Good). PM2.5 concentration is 9.65 µg/m³.

What is the temperature in Lake Forest right now?

The current temperature in Lake Forest is 13.1°C (feels like 13.1°C). Humidity is 60.9% and wind speed is 41.1 km/h.

Is it safe to go outside in Lake Forest?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Lake Forest, United States

Windy

13.1°C · 60.9% humidity

13.1°

Feels 13.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 152 stn

View full history →

Lake 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.

60.9%

Humidity

41.1 km/h

Wind ENE

1024.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

9.65 µg/m³

PM10▲

104.9 µg/m³

050100150200300500

What is the weather forecast for Lake Forest?

Temperature & Precipitation

PM2.5 Trend

45h · 152 stations

PM2.59.65 µg/m³ ✓ WHO

Good

PM10104.9 µg/m³

Moderate

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

9.65

Median

10.27

Average

8.6

Low

12.6

High

PM2.5 µg/m³ · Model: 27.1 · Bias: +17.5

What is the 7-day forecast for Lake Forest?

10-20

11.2° 6.7°

0.19 mm

10-21

20.6° 13.1°

0.13 mm

10-22

14.9° 9.6°

0.13 mm

10-23

11.8° 10.1°

2.88 mm

10-24

22.3° 11.8°

10-25

14.7° 4.0°

1.13 mm

10-26

15.3° 3.8°

8.38 mm

Both models agree Avg diff: 4.5°C

Where are air quality stations near Lake Forest?

–

a08-968758

9.3 km PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³

Northbrk, Illinois, USA

13.6 km PM2.5: 9.4 µg/m³

Northbrk, Illinois, USA

13.6 km PM2.5: 10.1 µg/m³

Desplns, Illinois, USA

22.1 km PM2.5: 8.6 µg/m³

Desplns, Illinois, USA

22.1 km PM2.5: 12.6 µg/m³

What cities are near Lake Forest?

35 North Chicago 44 Highland Park 34 Libertyville 46 Deerfield 34 Waukegan 38 Vernon Hills 34 Gurnee 33 Mundelein 45 Northbrook 53 Wheeling

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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 2026-10-20T21:05 UTC.