Today | Weather | Sunday, October 26, 2025

Weather in Sioux City, Iowa

09:02 AM
Now
Cloudy Weather
52° F
Feels Like 46°
Precipitation 0 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 71 %
Today
Cloudy Weather
Day 64°
Night 48°
Precipitation 6 %
Wind 14 mph
UV Index (0 - 11+) 3

Sioux City Weather Forecast Updated

9 minutes ago
Last updated on

Air Quality in Sioux City

NOW
32 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 7.32 µg/m³
PM10 7.55 µg/m³
O3 0.034 ppm
NO2 1.3 ppb
SO2 0.2 ppb
CO 0.12 ppm
NH3 1.01 µg/m³
NO 0.02 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)
PM2.57.32 µg/m³
PM107.55 µg/m³
O367.5 µg/m³
NO22.37 µg/m³
SO20.42 µg/m³
CO136.15 µg/m³
NH31.01 µg/m³
NO0.02 µg/m³