Today | Weather | Monday, April 27, 2026

Weather in Ann Arbor, Michigan

01:36 PM
Now
Cloudy Weather
64° F
Feels Like 66°
Precipitation 7 %
Wind 14 mph
UV Index (0 - 11+) 6
Humidity 53 %
Today
Cloudy Weather
Day 66°
Night 59°
Precipitation 25 %
Wind 12 mph
UV Index (0 - 11+) 7

Ann Arbor Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 27, 2025)
Sunny Weather

Day

68°

Night

39°

Wind

4 mph

UV Index

8

Precipitation

0 %

Air Quality in Ann Arbor

NOW
48 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 9.02 µg/m³
PM10 10 µg/m³
O3 0.052 ppm
NO2 0.8 ppb
SO2 0.7 ppb
CO 0.14 ppm
NH3 2.12 µg/m³
NO 0.2 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.59.02 µg/m³
PM1010 µg/m³
O3101.95 µg/m³
NO21.53 µg/m³
SO21.81 µg/m³
CO162.43 µg/m³
NH32.12 µg/m³
NO0.2 µg/m³