Air Quality in Onalaska, United States
Partly Cloudy
27.2°C · 54.4% humidity
27.2°
Feels 29.6°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Onalaska's air quality — share it
AQI Forecast
Calibrated
30
8am
30
30
32
11am
30
30
30
2pm
30
30
30
5pm
30
30
31
8pm
31
31
33
11pm
40
60
60
2am
60
72
72
5am
72
72
Station readings
32
CAMS model
adj +6
24
24
24
24
24
24
24
24
24
24
24
24
25
25
25
27
34
54
54
54
66
66
66
66
Air Quality Index Trend
9h · 1 stnOnalaska's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
54.4%
Humidity
31.3 km/h
Wind SSE
1015.2 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.7 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Onalaska?
Temperature & Precipitation
PM2.5 Trend
9h · 1 stationPM2.57.7 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
Station readings (1 station within 25 km)
7.7
Median
7.7
Average
7.7
Low
7.7
High
PM2.5 µg/m³ · Model: 6.15 · Bias: -1.5
What is the 7-day forecast for Onalaska?
07-21
27.2° 21.3°
4.81 mm
07-22
25.8° 18.6°
8.94 mm
07-23
22.3° 17.3°
1.44 mm
07-24
29.0° 15.3°
0.25 mm
07-25
23.6° 16.6°
2.06 mm
07-26
26.2° 19.5°
6.88 mm
07-27
27.7° 18.1°
Both models agree
Avg diff: 4.9°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 2026-07-21T16:33 UTC.