Today | Weather | Monday, September 21, 2026

Weather in West Des Moines, Iowa

12:56 PM
Now
Cloudy Weather
61° F
Feels Like 61°
Precipitation 40 %
Wind 8 mph
UV Index (0 - 11+) 1
Humidity 84 %
Today
Rainy Weather
Day 61°
Night 54°
Precipitation 96 %
Wind 8 mph
UV Index (0 - 11+) 1

West Des Moines Weather Forecast Updated

29 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 21, 2025)
Cloudy Weather

Day

81°

Night

63°

Wind

4 mph

UV Index

50

Precipitation

25 %

Air Quality in West Des Moines

NOW
23 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.2 µg/m³
PM10 2.26 µg/m³
O3 0.025 ppm
NO2 1 ppb
SO2 0.1 ppb
CO 0.15 ppm
NH3 0.56 µg/m³
NO 0.21 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)
PM2.52.2 µg/m³
PM102.26 µg/m³
O348.31 µg/m³
NO21.95 µg/m³
SO20.27 µg/m³
CO173.43 µg/m³
NH30.56 µg/m³
NO0.21 µg/m³