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
Portland's allergy season varies with proximity to the coast. Coastal breezes help, but residents of Portland, OR can still experience significant pollen from February through October, especially during dry, warm spells.
Right now: May transitions to grass pollen in Portland. Inland areas see higher counts than coastal neighborhoods.
Spring
Feb – May
Tree pollen starts early — alder, birch, and oak are primary triggers.
Summer
May – Jul
Grass pollen peaks. Inland valleys see significantly higher counts than the coast.
Fall
Aug – Oct
Ragweed and sagebrush in drier areas. Coastal cities see lower counts.
Ocean breezes near Portland can help clear pollen, but inland valleys trap allergens. Wildfire season also degrades air quality significantly. PollenTracker monitors both pollen and AQI to give you the full picture.
Open another nearby forecast without going back to the map.
CAUTION
Limit exposure
Grass pollen is high (250 grains/m³) and air quality is fair. Take allergy medication and aim for the safest outdoor window.
Lower-risk hours: 11:00-13:00
Pollen Level
High
250 grains/m³ · Grass
Air Quality
AQI 51
Moderate
Weather
55°F
Cloudy · 72% humidity · 8 mph wind
~250 grains/m³
~120 grains/m³
~5 grains/m³