Today | Weather | Tuesday, October 13, 2026

Weather in Sioux City, Iowa

07:04 PM
Now
Cloudy Weather
57° F
Feels Like 55°
Precipitation 0 %
Wind 7 mph
Humidity 58 %
Today
Cloudy Weather
Day 63°
Night 43°
Precipitation 8 %
Wind 7 mph
UV Index (0 - 11+) 2

Sioux City Weather Forecast Updated

27 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 13, 2025)
Rainy Night

Day

64°

Night

48°

Wind

8 mph

Precipitation

55 %

Air Quality in Sioux City

NOW
24 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.68 µg/m³
PM10 0.8 µg/m³
O3 0.026 ppm
NO2 1.2 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 2.62 µg/m³
NO 0 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)
PM2.5 – 0.68 µg/m³
PM10 – 0.8 µg/m³
O3 – 51.76 µg/m³
NO2 – 2.26 µg/m³
SO2 – 0.3 µg/m³
CO – 149.65 µg/m³
NH3 – 2.62 µg/m³
NO – 0 µg/m³