Today | Weather | Monday, July 20, 2026

Active Weather Warnings

Tornado Watch

Weather in Dubuque, Iowa

04:20 PM

Now

86° F

Feels Like 88°

Precipitation 61 %

Wind 14 mph

UV Index (0 - 11+) 2

Humidity 63 %

Today

Day 90°

Night 70°

Precipitation 100 %

Wind 10 mph

UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Dubuque Weather Forecast Updated

27 minutes ago

Last updated on July 20, 2026 at 3:53 PM

Air Quality in Dubuque

NOW

40 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 8.27 µg/m³

PM₁₀ 8.41 µg/m³

O₃ 0.043 ppm

NO₂ 0.4 ppb

SO₂ 0.5 ppb

CO 0.13 ppm

NH₃ 0.78 µg/m³

NO 0.12 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 – 8.27 µg/m³

PM₁₀ – 8.41 µg/m³

O₃ – 84.57 µg/m³

NO₂ – 0.66 µg/m³

SO₂ – 1.38 µg/m³

CO – 149.13 µg/m³

NH₃ – 0.78 µg/m³

NO – 0.12 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Dubuque

Extreme Future Possible

Tornado Watch

Tornado Watch issued July 20 at 3:06PM CDT until July 20 at 10:00PM CDT by NWS Quad Cities IA IL

Jul 20, 3:06 PM → Jul 20, 10:00 PM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 500 IN
EFFECT UNTIL 10 PM CDT THIS EVENING FOR THE FOLLOWING AREAS

IN IOWA THIS WATCH INCLUDES 10 COUNTIES

IN EAST CENTRAL IOWA

BENTON IOWA JOHNSON
JONES LINN

IN NORTHEAST IOWA

BUCHANAN DELAWARE DUBUQUE

IN SOUTHEAST IOWA

KEOKUK WASHINGTON

THIS INCLUDES THE CITIES OF ANAMOSA, CEDAR RAPIDS, DUBUQUE,
INDEPENDENCE, IOWA CITY, MANCHESTER, MARENGO, SIGOURNEY, VINTON,
AND WASHINGTON.

Updated: Jul 20, 3:53 PM Source: NWS Alert