Today | Weather | Wednesday, October 22, 2025

Weather in Madison, Wisconsin

06:18 AM

Now

45° F

Feels Like 30°

Precipitation 47 %

Wind 20 mph

Humidity 87 %

Today

Day 48°

Night 36°

Precipitation 25 %

Wind 20 mph

UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

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.

Madison Weather Forecast Updated

Last updated on October 22, 2025 4:49 AM

Weather Forecast History

Last Year's Weather on This Day (October 22, 2024)

Day

68°

Night

54°

Wind

8 mph

Precipitation

Air Quality in Madison

NOW

29 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.5 µg/m³

PM₁₀ 0.5 µg/m³

O₃ 0.032 ppm

NO₂ 0.5 ppb

SO₂ 0.1 ppb

CO 0.09 ppm

NH₃ 1.81 µg/m³

NO 0 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 – 0.5 µg/m³

PM₁₀ – 0.5 µg/m³

O₃ – 62.28 µg/m³

NO₂ – 1.03 µg/m³

SO₂ – 0.15 µg/m³

CO – 104.95 µg/m³

NH₃ – 1.81 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast