What is the air quality in Crystal Lake today?

The current Air Quality Index (AQI) in Crystal Lake is 22 (Good). PM2.5 concentration is 5.32 µg/m³.

What is the temperature in Crystal Lake right now?

The current temperature in Crystal Lake is 16.6°C (feels like 16.6°C). Humidity is 94.0% and wind speed is 98.7 km/h.

Is it safe to go outside in Crystal Lake?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Low).

Air Quality in Crystal Lake, United States

Windy

16.6°C · 94.0% humidity

16.6°

Feels 16.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated

28 7pm

18 10pm

18 1am

30 4am

5 7am

18 10am

18 1pm

18 4pm

Station readings

CAMS model adj -7

PM2.5 Trend (24h)

23h · 80 stations

94.0%

Humidity

98.7 km/h

Wind SSW

1015.4 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Crystal Lake?

Temperature & Precipitation

PM2.55.32 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

What is the 7-day forecast for Crystal Lake?

04-09

17.5° 9.9°

04-10

16.6° 6.0°

8.75 mm

04-11

9.1° 2.3°

13.5 mm

04-12

16.1° 8.1°

2.69 mm

04-13

24.2° 16.1°

0.25 mm

04-14

23.3° 14.7°

37.87 mm

04-15

12.7° 3.1°

0.13 mm

Both models agree Avg diff: 6.8°C

Where are air quality stations near Crystal Lake?

Cary, Illinois, USA

6.6 km

What cities are near Crystal Lake?

22 Lake in the Hills 22 Cary 22 Algonquin 22 McHenry 22 Huntley 23 Carpentersville 29 Lake Zurich 28 Round Lake 23 Elgin 28 Round Lake Beach

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:16 UTC.