Hourly Weather Forecast for West Des Moines, Iowa

Hourly Weather | Today › Wednesday, August 12, 2026

Active Weather Warnings

Severe Thunderstorm Watch

West Des Moines, Iowa

8 AM

73°

Feels Like 75°

Humidity: 96%

UV Index: 1

Wind: 7 mph

9 AM

75°

Feels Like 84°

Humidity: 88%

UV Index: 3

Wind: 7 mph

10 AM

79°

Feels Like 90°

Humidity: 83%

UV Index: 4

Wind: 7 mph

11 AM

81°

Feels Like 91°

Humidity: 78%

UV Index: 6

Wind: 8 mph

12 PM

81°

Feels Like 91°

Humidity: 78%

UV Index: 7

Wind: 8 mph

1 PM

82°

Feels Like 97°

Humidity: 74%

UV Index: 8

Wind: 8 mph

2 PM

82°

Feels Like 97°

Humidity: 72%

UV Index: 8

Wind: 8 mph

3 PM

84°

Feels Like 97°

Humidity: 71%

UV Index: 6

Wind: 9 mph

4 PM

84°

Feels Like 95°

Humidity: 69%

UV Index: 4

Wind: 9 mph

5 PM

84°

Feels Like 93°

Humidity: 72%

UV Index: 3

Wind: 9 mph

6 PM

82°

Feels Like 91°

Humidity: 77%

UV Index: 2

Wind: 8 mph

7 PM

81°

Feels Like 86°

Humidity: 79%

UV Index: 1

Wind: 8 mph

8 PM

81°

Feels Like 86°

Humidity: 83%

UV Index: 0

Wind: 7 mph

9 PM

77°

Feels Like 82°

Humidity: 90%

UV Index: 0

Wind: 6 mph

10 PM

75°

Feels Like 81°

Humidity: 95%

UV Index: 0

Wind: 6 mph

11 PM

73°

Feels Like 79°

Humidity: 96%

UV Index: 0

Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

8 AM

21 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 1.94 µg/m³
PM₁₀: 2.22 µg/m³
O₃: 0.023 ppm
NO₂: 1.5 ppb
SO₂: 0.4 ppb
CO: 0.09 ppm

Health Recommendations:

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

9 AM

21 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 1.94 µg/m³
PM₁₀: 2.24 µg/m³
O₃: 0.023 ppm
NO₂: 1.4 ppb
SO₂: 0.4 ppb
CO: 0.09 ppm

Health Recommendations:

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

10 AM

24 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.09 µg/m³
PM₁₀: 2.4 µg/m³
O₃: 0.025 ppm
NO₂: 1.1 ppb
SO₂: 0.5 ppb
CO: 0.09 ppm

Health Recommendations:

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

11 AM

29 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 2.56 µg/m³
PM₁₀: 2.9 µg/m³
O₃: 0.031 ppm
NO₂: 0.8 ppb
SO₂: 0.6 ppb
CO: 0.09 ppm

Health Recommendations:

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

12 PM

33 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 3.45 µg/m³
PM₁₀: 3.81 µg/m³
O₃: 0.036 ppm
NO₂: 0.6 ppb
SO₂: 0.6 ppb
CO: 0.09 ppm

Health Recommendations:

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

1 PM

37 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 4.43 µg/m³
PM₁₀: 4.8 µg/m³
O₃: 0.039 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.

2 PM

40 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.04 µg/m³
PM₁₀: 5.46 µg/m³
O₃: 0.043 ppm
NO₂: 0.4 ppb
SO₂: 0.5 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:

PM_2.5: 5.4 µg/m³
PM₁₀: 5.86 µg/m³
O₃: 0.044 ppm
NO₂: 0.4 ppb
SO₂: 0.5 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:

PM_2.5: 5.78 µg/m³
PM₁₀: 6.28 µg/m³
O₃: 0.046 ppm
NO₂: 0.3 ppb
SO₂: 0.5 ppb
CO: 0.09 ppm

Health Recommendations:

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

5 PM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.07 µg/m³
PM₁₀: 6.62 µg/m³
O₃: 0.047 ppm
NO₂: 0.4 ppb
SO₂: 0.5 ppb
CO: 0.09 ppm

Health Recommendations:

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

6 PM

43 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.26 µg/m³
PM₁₀: 6.86 µg/m³
O₃: 0.046 ppm
NO₂: 0.6 ppb
SO₂: 0.5 ppb
CO: 0.10 ppm

Health Recommendations:

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

7 PM

42 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.3 µg/m³
PM₁₀: 6.95 µg/m³
O₃: 0.045 ppm
NO₂: 0.9 ppb
SO₂: 0.6 ppb
CO: 0.10 ppm

Health Recommendations:

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

8 PM

38 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.27 µg/m³
PM₁₀: 6.94 µg/m³
O₃: 0.042 ppm
NO₂: 1.3 ppb
SO₂: 0.6 ppb
CO: 0.10 ppm

Health Recommendations:

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

9 PM

35 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.36 µg/m³
PM₁₀: 7 µg/m³
O₃: 0.037 ppm
NO₂: 1.5 ppb
SO₂: 0.6 ppb
CO: 0.10 ppm

Health Recommendations:

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

10 PM

32 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.48 µg/m³
PM₁₀: 7.04 µg/m³
O₃: 0.035 ppm
NO₂: 1.5 ppb
SO₂: 0.6 ppb
CO: 0.10 ppm

Health Recommendations:

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

11 PM

30 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.36 µg/m³
PM₁₀: 6.82 µg/m³
O₃: 0.032 ppm
NO₂: 1.4 ppb
SO₂: 0.5 ppb
CO: 0.10 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for West Des Moines

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued August 12 at 4:16AM CDT until August 12 at 10:00AM CDT by NWS Des Moines IA

Aug 12, 4:16 AM → Aug 12, 10:00 AM

SEVERE THUNDERSTORM WATCH 573 REMAINS VALID UNTIL 10 AM CDT THIS
MORNING FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 18 COUNTIES

IN CENTRAL IOWA

BOONE DALLAS POLK

IN SOUTH CENTRAL IOWA

CLARKE DECATUR MADISON
RINGGOLD UNION WARREN

IN SOUTHWEST IOWA

ADAIR ADAMS CASS
TAYLOR

IN WEST CENTRAL IOWA

AUDUBON CARROLL CRAWFORD
GREENE GUTHRIE

THIS INCLUDES THE CITIES OF ADAIR, ADEL, ATLANTIC, AUDUBON,
BAYARD, BEDFORD, BOONE, CARLISLE, CARROLL, CASEY, CORNING,
CRESTON, DENISON, DES MOINES, EARLHAM, EXIRA, FONTANELLE,
GREENFIELD, GUTHRIE CENTER, INDIANOLA, JEFFERSON, LAMONI, LENOX,
LEON, MOUNT AYR, NEW MARKET, NORWALK, OSCEOLA, PANORA, PERRY,
STUART, WAUKEE, AND WINTERSET.

* PRIMARY THREATS INCLUDE...

SCATTERED DAMAGING WINDS LIKELY WITH ISOLATED SIGNIFICANT GUSTS
TO 80 MPH POSSIBLE.
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE.

Updated: Aug 12, 7:24 AM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Weather Alerts and Warnings for West Des Moines

Severe Thunderstorm Watch

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