Today | Weather | Wednesday, August 12, 2026

Active Weather Warnings

Special Weather Statement

Weather in Green Bay, Wisconsin

06:50 AM

Now

66° F

Feels Like 66°

Precipitation 40 %

Wind 4 mph

UV Index (0 - 11+) 1

Humidity 91 %

Today

Day 81°

Night 63°

Precipitation 55 %

Wind 6 mph

UV Index (0 - 11+) 3

Green Bay Weather Forecast Updated

26 minutes ago

Last updated on August 12, 2026 at 6:24 AM

Weather Forecast History

Last Year's Weather on This Day (August 12, 2025)

Day

84°

Night

63°

Wind

5 mph

Precipitation

22 %

Air Quality in Green Bay

NOW

71 AQI

Moderate air quality Dominant pollutant: PM_2.5

Pollutant Concentrations:

PM_2.5 21.89 µg/m³

PM₁₀ 22.23 µg/m³

O₃ 0.008 ppm

NO₂ 3.2 ppb

SO₂ 0.1 ppb

CO 0.16 ppm

NH₃ 2.9 µg/m³

NO 0.06 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 21.89 µg/m³

PM₁₀ – 22.23 µg/m³

O₃ – 15.87 µg/m³

NO₂ – 6.08 µg/m³

SO₂ – 0.37 µg/m³

CO – 186.44 µg/m³

NH₃ – 2.9 µg/m³

NO – 0.06 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for Green Bay

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued August 12 at 6:08AM CDT by NWS Green Bay WI

Aug 12, 6:08 AM → Aug 12, 9:00 AM

Patchy dense fog, with visibility less than one-half mile at
times, has developed over portions of the area this morning. The
fog is expected to lift quickly after 8 AM.

If you encounter dense fog while driving this morning, be sure to
use your low-beam headlights and maintain plenty of distance
between your vehicle and other vehicles.

Updated: Aug 12, 6:24 AM Source: NWS Alert