Today | Weather | Tuesday, June 30, 2026

Active Weather Warnings

Weather in Des Moines, Iowa

04:27 PM

Now

91° F

Feels Like 97°

Precipitation 7 %

Wind 18 mph

UV Index (0 - 11+) 5

Humidity 54 %

Today

Day 93°

Night 73°

Precipitation 25 %

Wind 17 mph

UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Des Moines Weather Forecast Updated

Last updated on June 30, 2026 at 3:10 PM

Weather Forecast History

Last Year's Weather on This Day (June 30, 2025)

Day

82°

Night

63°

Wind

8 mph

UV Index

Precipitation

55 %

Air Quality in Des Moines

NOW

36 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 6.38 µg/m³

PM₁₀ 11.63 µg/m³

O₃ 0.038 ppm

NO₂ 0.3 ppb

SO₂ 0.4 ppb

CO 0.09 ppm

NH₃ 1.36 µg/m³

NO 0.09 µg/m³

PM_2.5 – 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)

PM_2.5 – 6.38 µg/m³

PM₁₀ – 11.63 µg/m³

O₃ – 75.37 µg/m³

NO₂ – 0.55 µg/m³

SO₂ – 1.07 µg/m³

CO – 102.87 µg/m³

NH₃ – 1.36 µg/m³

NO – 0.09 µg/m³

View Hourly Air Quality Forecast

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.

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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.