Today | Weather | Monday, September 8, 2025

Weather in Ann Arbor, Michigan

07:00 PM

Now

66° F

Feels Like 64°

Precipitation 0 %

Wind 6 mph

UV Index (0 - 11+) 3

Humidity 47 %

Today

Day 70°

Night 45°

Precipitation 0 %

Wind 6

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.

Other:

Sunny and pleasant with a twist.

Ann Arbor Weather Forecast Updated

42 minutes ago

Last updated on September 08, 2025 6:18 PM

Air quality in Ann Arbor

NOW

31 AQI

Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 6.66 µg/m³

PM10 6.86 µg/m³

O₃ 39.63 ppb

NO₂ 6.87 ppb

SO₂ 0.61 ppb

CO 203.46 ppb

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

View Hourly Air Quality Forecast