Hourly Weather Forecast for Des Moines, Iowa

Hourly Weather | Today › Tuesday, June 30, 2026

Active Weather Warnings

Extreme Heat Watch
Extreme Heat Warning

Des Moines, Iowa

6 PM

91°

Feels Like 97°

Humidity: 57%

UV Index: 2

Wind: 16 mph

7 PM

90°

Feels Like 93°

Humidity: 56%

UV Index: 1

Wind: 14 mph

8 PM

88°

Feels Like 91°

Humidity: 59%

UV Index: 0

Wind: 12 mph

9 PM

86°

Feels Like 90°

Humidity: 64%

UV Index: 0

Wind: 10 mph

10 PM

82°

Feels Like 86°

Humidity: 68%

UV Index: 0

Wind: 10 mph

11 PM

82°

Feels Like 84°

Humidity: 71%

UV Index: 0

Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 PM

36 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.24 µg/m³
PM₁₀: 11.03 µg/m³
O₃: 0.039 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.

7 PM

36 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.2 µg/m³
PM₁₀: 10.77 µg/m³
O₃: 0.039 ppm
NO₂: 0.6 ppb
SO₂: 0.4 ppb
CO: 0.09 ppm

Health Recommendations:

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

8 PM

35 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 6.04 µg/m³
PM₁₀: 9.74 µg/m³
O₃: 0.037 ppm
NO₂: 0.8 ppb
SO₂: 0.4 ppb
CO: 0.10 ppm

Health Recommendations:

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

9 PM

33 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.91 µg/m³
PM₁₀: 8.5 µg/m³
O₃: 0.035 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

31 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.83 µg/m³
PM₁₀: 7.62 µg/m³
O₃: 0.033 ppm
NO₂: 1.2 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

28 AQI

Good air quality Dominant pollutant: O₃

Details

Pollutant Concentrations:

PM_2.5: 5.72 µg/m³
PM₁₀: 7.2 µg/m³
O₃: 0.030 ppm
NO₂: 1.3 ppb
SO₂: 0.3 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 Des Moines

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued June 27 at 8:49AM CDT until June 30 at 9:00PM CDT by NWS Des Moines IA

Jun 28, 1:00 PM → Jun 30, 9:00 PM

WHAT: Dangerously hot conditions with heat index exceeding 100
degrees multiple days.

WHERE: Much of Iowa.

WHEN: From Sunday afternoon through Tuesday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

ADDITIONAL DETAILS: Excessive heat will persist through much of
next week, potentially including the 4th of July weekend.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

Updated: Jun 27, 12:37 PM Source: NWS Alert

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued June 30 at 12:01PM CDT until July 2 at 10:00PM CDT by NWS Des Moines IA

Jun 30, 12:01 PM → Jul 2, 10:00 PM

WHAT: Dangerously hot conditions with heat index values up to 104
expected.

WHERE: Portions of southern and southeast Iowa.

WHEN: Until 10 PM CDT Thursday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Updated: Jun 30, 4:41 PM Source: NWS Alert

Hourly Air Quality Forecast - AQI (US EPA)

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Health Recommendations:

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Weather Alerts and Warnings for Des Moines

Extreme Heat Watch

Extreme Heat Warning

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