Today | Weather | Thursday, February 26, 2026

Weather in Ann Arbor, Michigan

02:48 AM
Now
Cloudy Night
18° F
Feels Like 16°
Precipitation 0 %
Wind 5 mph
Humidity 75 %
Today
Cloudy Weather
Day 39°
Night 28°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 4
Overnight Frost 12 AM – 9 AM

Ann Arbor Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 26, 2025)
Rainy Weather

Day

39°

Night

34°

Wind

4 mph

UV Index

1

Precipitation

97 %

Air Quality in Ann Arbor

NOW
31 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 7.48 µg/m³
PM10 9.51 µg/m³
O3 0.031 ppm
NO2 5.3 ppb
SO2 0.4 ppb
CO 0.20 ppm
NH3 2.96 µg/m³
NO 0 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)
PM2.57.48 µg/m³
PM109.51 µg/m³
O361.45 µg/m³
NO210.01 µg/m³
SO20.94 µg/m³
CO231.32 µg/m³
NH32.96 µg/m³
NO0 µg/m³