Today | Weather | Tuesday, April 7, 2026

Weather in Sioux City, Iowa

08:45 AM
Now
Cloudy Weather
32° F
Feels Like 23°
Precipitation 28 %
Wind 12 mph
UV Index (0 - 11+) 1
Humidity 58 %
Today
Snowy Weather
Day 45°
Night 41°
Precipitation 55 %
Wind 15 mph
UV Index (0 - 11+) 2

Sioux City Weather Forecast Updated

Last updated on

Air Quality in Sioux City

NOW
45 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.08 µg/m³
PM10 1.26 µg/m³
O3 0.048 ppm
NO2 1.3 ppb
SO2 0.4 ppb
CO 0.13 ppm
NH3 2.97 µg/m³
NO 0.04 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.51.08 µg/m³
PM101.26 µg/m³
O394.66 µg/m³
NO22.39 µg/m³
SO20.92 µg/m³
CO152.65 µg/m³
NH32.97 µg/m³
NO0.04 µg/m³