Air Quality in Sioux City, United States
Windy
27.3°C · 45.3% humidity
27.3°
Feels 28.6°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Sioux City's air quality — share it
AQI Forecast
24
3pm
24
24
26
6pm
24
24
24
9pm
24
24
24
12am
24
24
24
3am
24
25
25
6am
27
25
25
9am
25
25
25
12pm
25
25
Sioux City's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
45.3%
Humidity
63.5 km/h
Wind SSE
1008.4 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.15 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Sioux City?
Temperature & Precipitation
PM2.56.15 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX4.4
Moderate
What is the 7-day forecast for Sioux City?
06-08
30.2° 21.7°
0.06 mm
06-09
30.6° 20.6°
0.38 mm
06-10
22.3° 15.5°
6.25 mm
06-11
30.3° 20.5°
06-12
32.0° 16.0°
0.62 mm
06-13
30.5° 19.7°
3.81 mm
06-14
29.7° 15.4°
0.25 mm
Both models agree
Avg diff: 6.6°C
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-08T23:22 UTC.