Air Quality in Sioux City, United States

Windy
21.7°C · 46.9% humidity
21.7°
Feels 21.7°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
27 4pm
27
27
25 7pm
25
25
25 10pm
25
25
25 1am
25
25
25 4am
25
25
25 7am
25
25
25 10am
27
27
27 1pm
27
27
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.

46.9%
Humidity
62.0 km/h
Wind ESE
1025.7 hPa
Pressure
1.4
UV Low
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 INDEX1.4
Low
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 2026-05-29T00:19 UTC.