Today | Weather | Tuesday, September 1, 2026

Active Weather Warnings

Dense Fog Advisory

Weather in Dubuque, Iowa

10:24 AM

Now

81° F

Feels Like 93°

Precipitation 47 %

Wind 5 mph

UV Index (0 - 11+) 3

Humidity 82 %

Today

Day 93°

Night 72°

Precipitation 55 %

Wind 6 mph

UV Index (0 - 11+) 6

Dubuque Weather Forecast Updated

36 minutes ago

Last updated on September 01, 2026 at 9:47 AM

Air Quality in Dubuque

NOW

30 AQI

Good air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 7.25 µg/m³

PM₁₀ 7.98 µg/m³

O₃ 0.015 ppm

NO₂ 1.5 ppb

SO₂ 0.1 ppb

CO 0.12 ppm

NH₃ 2.03 µg/m³

NO 1.35 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 – 7.25 µg/m³

PM₁₀ – 7.98 µg/m³

O₃ – 29.77 µg/m³

NO₂ – 2.9 µg/m³

SO₂ – 0.22 µg/m³

CO – 142.98 µg/m³

NH₃ – 2.03 µg/m³

NO – 1.35 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Dubuque

Moderate Expected Likely

Dense Fog Advisory

Dense Fog Advisory issued September 1 at 2:32AM CDT until September 1 at 10:00AM CDT by NWS Quad Cities IA IL

Sep 1, 2:32 AM → Sep 1, 10:00 AM

WHAT: Visibility of one quarter mile or less in dense fog. The fog
is expected to impact the morning commute. Visibilities may change
suddenly over very short distances.

WHERE: Benton, Jones, Linn, Buchanan, Delaware, and Dubuque
Counties.

WHEN: Until 10 AM CDT this morning.

IMPACTS: Low visibility could make driving conditions hazardous.

+ Read More

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

Updated: Sep 1, 8:18 AM Source: NWS Alert