Air Quality in Sioux City, United States

Cloudy
7.4°C · 85.4% humidity
7.4°
Feels 2.6°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
25 6am
25
25
25 9am
25
27
27 12pm
27
27
27 3pm
25
25
25 6pm
25
27
27 9pm
27
27
27 12am
25
25
25 3am
25
25
AD 728×90

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. Current PM2.5 concentration in Sioux City is 1.2× the WHO annual guideline of 5 µg/m³.

85.4%
Humidity
38.0 km/h
Wind ESE
1032.2 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
PM2.5
25
6.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.56.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
AD 300×250
05-29
31.7° 7.4°
05-30
23.8° 14.9°
1.13 mm
05-31
29.2° 11.6°
2.75 mm
06-01
26.1° 16.2°
3.81 mm
06-02
25.6° 17.2°
0.13 mm
06-03
31.5° 22.2°
06-04
25.1° 16.5°
1.19 mm
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T14:36 UTC.