Today | Weather | Thursday, October 29, 2026

Weather in Ann Arbor, Michigan

10:27 AM
Now
Cloudy Weather
54° F
Feels Like 52°
Precipitation 6 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 83 %
Today
Partly Sunny with Showers
Day 72°
Night 39°
Precipitation 64 %
Wind 12 mph
UV Index (0 - 11+) 3

Ann Arbor Weather Forecast Updated

6 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 29, 2025)
Cloudy Night

Day

55°

Night

41°

Wind

14 mph

Precipitation

49 %

Air Quality in Ann Arbor

NOW
68 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 20.38 µg/m³
PM10 23.1 µg/m³
O3 0.042 ppm
NO2 3.1 ppb
SO2 1.3 ppb
CO 0.17 ppm
NH3 2.86 µg/m³
NO 0.29 µg/m³
PM2.5 – 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)
PM2.5 – 20.38 µg/m³
PM10 – 23.1 µg/m³
O3 – 81.96 µg/m³
NO2 – 5.92 µg/m³
SO2 – 3.4 µg/m³
CO – 199.73 µg/m³
NH3 – 2.86 µg/m³
NO – 0.29 µg/m³