What is the air quality in Sioux City today?

The current Air Quality Index (AQI) in Sioux City is 34 (Good). PM2.5 concentration is 8.2 µg/m³.

What is the temperature in Sioux City right now?

The current temperature in Sioux City is 10.3°C (feels like 10.3°C). Humidity is 39.0% and wind speed is 30.8 km/h.

Is it safe to go outside in Sioux City?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Sioux City, United States

Clear

10.3°C · 39.0% humidity

10.3°

Feels 10.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

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View AQI history for Sioux City →

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.

39.0%

Humidity

30.8 km/h

Wind ESE

1031.2 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

8.2 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Sioux City?

Temperature & Precipitation

PM2.58.2 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Sioux City?

10-20

16.4° 3.3°

10-21

25.5° 9.0°

10-22

16.8° 8.0°

10-23

12.7° 5.4°

10-24

22.1° 12.4°

10-25

16.1° 3.7°

1.12 mm

10-26

21.3° 0.4°

Both models agree Avg diff: 5.2°C

What cities are near Sioux City?

34 Norfolk 26 Fremont 54 Sioux Falls 35 Omaha 32 Council Bluffs 26 La Vista 21 Papillion 15 Bellevue 27 Fort Dodge 34 Mitchell

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T20:05 UTC.