Pollen Level
Loading
Fetching live data
Loading city data
Current Conditions
Air Quality
Loading
Fetching live data
Weather
Loading
Fetching live data
Checking today's conditions
Gathering pollen, air quality, and weather data for you.
Loading city data
Pollen Level
Loading
Fetching live data
Air Quality
Loading
Fetching live data
Weather
Loading
Fetching live data
Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
Loading
Fetching live data
Air Quality
Loading
Fetching live data
Weather
Loading
Fetching live data
Ann Arbor's allergy season is compressed but intense, running from April through October. The flat, agricultural landscape around Ann Arbor, MI produces significant grass and ragweed pollen during peak months.
Right now: May is the overlap month in Ann Arbor — tree pollen fading as grass pollen surges. Double exposure for allergy sufferers.
Spring
Apr – May
Tree pollen season is short but intense — oak, elm, and ash dominate.
Summer
May – Jul
Grass pollen peaks in June. Agricultural regions see elevated counts.
Fall
Aug – Oct
Ragweed is the dominant allergen. The Midwest is a major ragweed zone.
The flat terrain near Ann Arbor allows pollen to travel long distances on the wind. Cold fronts can temporarily drop counts, but warm spells bring rapid pollen surges. PollenTracker monitors these daily shifts.
Open another nearby forecast without going back to the map.
CAUTION
Limit exposure
Tree pollen is high at 120 grains/m³, but winds are light and air quality is decent. Take precautions — the safest hours are later in the day.
Lower-risk hours: 11:00-12:00, 20:00
Pollen Level
High
120 grains/m³ · Tree
Air Quality
AQI 49
Good
Weather
56°F
Sunny · 52% humidity · 3 mph wind
~120 grains/m³
~120 grains/m³
~5 grains/m³