Air Quality in Round Lake, United States
Windy
25.5°C · 34.4% humidity
25.5°
Feels 25.5°
41
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Round Lake's air quality — share it
AQI Forecast
Calibrated
55
6pm
55
55
41
9pm
45
48
50
12am
51
52
53
3am
54
54
54
6am
55
25
25
9am
26
26
26
12pm
26
26
26
3pm
26
25
Station readings
57
54
48
CAMS model
adj +1
54
54
54
54
54
54
54
54
54
54
54
54
54
54
24
24
25
25
25
25
25
25
25
24
Air Quality Index Trend
31h · 1 stnRound Lake's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
34.4%
Humidity
49.8 km/h
Wind NNE
1018.6 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
9.8 µg/m³
PM10
27.4 µg/m³
050100150200300500
What is the weather forecast for Round Lake?
Temperature & Precipitation
PM2.5 Trend
31h · 1 stationPM2.59.8 µg/m³
✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX5.9
High
Station readings (1 station within 25 km)
9.8
Median
9.8
Average
9.8
Low
9.8
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +3.7
What is the 7-day forecast for Round Lake?
08-03
25.7° 17.6°
5.63 mm
08-04
36.4° 13.0°
0.38 mm
08-05
30.5° 12.5°
0.75 mm
08-06
36.0° 20.8°
0.25 mm
08-07
31.3° 14.8°
0.62 mm
08-08
34.8° 15.5°
7.44 mm
08-09
33.6° 23.0°
0.19 mm
Both models agree
Avg diff: 4.8°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 2026-08-08T02:07 UTC.