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Gathering pollen, air quality, and weather data for you.
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Gathering pollen, air quality, and weather data for you.
Gathering pollen, air quality, and weather data for you.
Pollen Level
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Air Quality
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Weather
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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: September weed pollen continues in Portland. AQI can be poor from wildfire smoke — check both metrics.
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.
YES
Conditions are manageable, but Ragweed pollen is moderate and air quality is fair. Most people can head out with light precautions.
Pollen: Ragweed pollen risk is medium today; source reading: Google UPI 1/5 (Very Low).
Best hours: 12:00-14:00
Weather
70°F
Cloudy · 48% humidity · 3 mph wind
Google UPI 0/5
Google UPI 0/5