What is the air quality in Sioux City today?

The current Air Quality Index (AQI) in Sioux City is 31 (Good). PM2.5 concentration is 7.4 µg/m³.

What is the temperature in Sioux City right now?

The current temperature in Sioux City is 8.7°C (feels like 2.5°C). Humidity is 52.6% and wind speed is 79.0 km/h.

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0 (Low).

Windy

8.7°C · 52.6% humidity

8.7°

Feels 2.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

AQI Forecast

12 3pm

12 6pm

12 9pm

12 12am

12 3am

12 6am

12 9am

12 12pm

52.6%

Humidity

79.0 km/h

Wind NNE

1016.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

PM2.57.4 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Both models agree Avg diff: 5.8°C

Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:37 UTC.