Today | Weather | Saturday, September 19, 2026

Weather in Des Moines, Iowa

01:26 PM
Now
Rainy Weather
82° F
Feels Like 84°
Precipitation 49 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 69 %
Today
Sunny with a Chance of Thunderstorms
Day 82°
Night 61°
Precipitation 70 %
Wind 8 mph
UV Index (0 - 11+) 3

Des Moines Weather Forecast Updated

36 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 19, 2025)
Stormy Weather

Day

79°

Night

61°

Wind

4 mph

Precipitation

80 %

Air Quality in Des Moines

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.28 µg/m³
PM10 6.66 µg/m³
O3 0.042 ppm
NO2 0.5 ppb
SO2 0.4 ppb
CO 0.12 ppm
NH3 0.98 µg/m³
NO 0.18 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)
PM2.56.28 µg/m³
PM106.66 µg/m³
O383.3 µg/m³
NO21.02 µg/m³
SO20.99 µg/m³
CO137.28 µg/m³
NH30.98 µg/m³
NO0.18 µg/m³