Today | Weather | Friday, August 14, 2026
Active Weather Warnings

Weather in Des Moines, Iowa

12:06 PM
Now
Stormy Weather
75° F
Feels Like 79°
Precipitation 58 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 92 %
Today
Stormy Weather
Day 81°
Night 72°
Precipitation 100 %
Wind 10 mph
UV Index (0 - 11+) 2

Des Moines Weather Forecast Updated

55 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 14, 2025)
Cloudy Night

Day

84°

Night

70°

Wind

10 mph

Precipitation

2 %

Air Quality in Des Moines

NOW
27 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.16 µg/m³
PM10 4.83 µg/m³
O3 0.029 ppm
NO2 0.7 ppb
SO2 0.3 ppb
CO 0.09 ppm
NH3 0.83 µg/m³
NO 0.3 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)
PM2.54.16 µg/m³
PM104.83 µg/m³
O356.37 µg/m³
NO21.27 µg/m³
SO20.68 µg/m³
CO105.84 µg/m³
NH30.83 µg/m³
NO0.3 µg/m³

Weather Alerts and Warnings for Des Moines

Severe Future Possible

Flood Watch

Flood Watch issued August 14 at 3:30AM CDT until August 15 at 10:00AM CDT by NWS Des Moines IA
Aug 14, 3:30 AM Aug 15, 10:00 AM
WHAT: Flash flooding caused by excessive rainfall continues to be
possible.

WHERE: Much of central Iowa.

WHEN: Through Saturday morning.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas.

ADDITIONAL DETAILS:
- Several rounds of rainfall have occurred this week with more
rain to come early this morning through Saturday morning with
the potential to repeat over the same area leading to rain
quickly accumulating as well as high rain rates of 1 to 2
inches per hour.
+ Read More
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. For the latest stream observations and forecasts refer to weather.gov/desmoines/water.
Updated: Aug 14, 11:10 AM Source: NWS Alert