Hourly Weather | Today Friday, August 14, 2026
Active Weather Warnings
Des Moines, Iowa
1 PM
Stormy Weather
75°
Feels Like 81°
54
Humidity: 87%
UV Index: 2
Wind: 13 mph
2 PM
Stormy Weather
79°
Feels Like 82°
48
Humidity: 85%
UV Index: 2
Wind: 10 mph
3 PM
Cloudy Weather
79°
Feels Like 86°
48
Humidity: 84%
UV Index: 2
Wind: 10 mph
4 PM
Stormy Weather
81°
Feels Like 84°
56
Humidity: 81%
UV Index: 1
Wind: 12 mph
5 PM
Cloudy Weather
81°
Feels Like 88°
40
Humidity: 85%
UV Index: 1
Wind: 10 mph
6 PM
Cloudy Weather
79°
Feels Like 88°
34
Humidity: 87%
UV Index: 1
Wind: 10 mph
7 PM
Cloudy Weather
79°
Feels Like 86°
39
Humidity: 90%
UV Index: 0
Wind: 10 mph
8 PM
Cloudy Weather
79°
Feels Like 84°
49
Humidity: 94%
UV Index: 0
Wind: 10 mph
9 PM
Stormy Weather
75°
Feels Like 75°
72
Humidity: 100%
UV Index: 0
Wind: 10 mph
10 PM
Stormy Weather
75°
Feels Like 75°
72
Humidity: 100%
UV Index: 0
Wind: 9 mph
11 PM
Cloudy Night
73°
Feels Like 81°
49
Humidity: 100%
UV Index: 0
Wind: 8 mph

Hourly Air Quality Forecast - AQI (US EPA)

1 PM
32 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.85 µg/m³
  • PM10: 5.6 µg/m³
  • O3: 0.034 ppm
  • NO2: 0.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.55 µg/m³
  • PM10: 6.39 µg/m³
  • O3: 0.041 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.07 µg/m³
  • PM10: 7.01 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.45 µg/m³
  • PM10: 7.56 µg/m³
  • O3: 0.046 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.79 µg/m³
  • PM10: 8.16 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
44 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.04 µg/m³
  • PM10: 8.7 µg/m³
  • O3: 0.048 ppm
  • NO2: 0.5 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
43 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 7.14 µg/m³
  • PM10: 9.09 µg/m³
  • O3: 0.047 ppm
  • NO2: 0.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.95 µg/m³
  • PM10: 9.09 µg/m³
  • O3: 0.044 ppm
  • NO2: 0.8 ppb
  • SO2: 0.5 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.62 µg/m³
  • PM10: 8.85 µg/m³
  • O3: 0.041 ppm
  • NO2: 1 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.22 µg/m³
  • PM10: 8.47 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.1 ppb
  • SO2: 0.4 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.68 µg/m³
  • PM10: 7.85 µg/m³
  • O3: 0.034 ppm
  • NO2: 1.2 ppb
  • SO2: 0.3 ppb
  • CO: 0.10 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

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, 12:41 PM Source: NWS Alert