Air Quality in Crest Hill, United States
Drizzle
23.9°C · 66.0% humidity
23.9°
Feels 23.9°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Crest Hill's air quality — share it
AQI Forecast
24
3pm
24
24
42
6pm
37
34
34
9pm
32
30
29
12am
29
26
28
3am
55
83
83
6am
84
54
66
9am
83
83
84
12pm
146
146
Air Quality Index Trend
48h · 6 stnCrest Hill's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
66.0%
Humidity
37.5 km/h
Wind ENE
1013.6 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.16 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Crest Hill?
Temperature & Precipitation
PM2.5 Trend
48h · 6 stationsPM2.510.16 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX6.9
High
Station readings (4 stations within 25 km)
10.16
Median
10.08
Average
7.2
Low
11.8
High
PM2.5 µg/m³ · Model: 9.65 · Bias: -0.5
What is the 7-day forecast for Crest Hill?
07-21
28.0° 21.8°
1.5 mm
07-22
23.9° 18.3°
0.56 mm
07-23
22.2° 15.9°
13.25 mm
07-24
26.8° 16.7°
07-25
23.2° 16.9°
0.44 mm
07-26
24.7° 20.1°
1.94 mm
07-27
26.1° 19.1°
0.19 mm
Both models agree
Avg diff: 4.2°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 2026-07-21T23:13 UTC.