Pollen count in Portland today
Pollen in Portland, OR is None on Thu Nov 5. No tree, grass or weed pollen is forecast in the air.
5-day pollen forecast
| Day | Tree | Grass | Ragweed | Weed |
|---|---|---|---|---|
| Thu Nov 5 | None | None | None | None |
| Fri Nov 6 | None | None | None | None |
| Sat Nov 7 | None | None | None | None |
| Sun Nov 8 | None | None | None | None |
| Mon Nov 9 | None | None | None | None |
Scale: Universal Pollen Index, 0 None · 1 Very Low · 2 Low · 3 Moderate · 4 High · 5 Very High. What the numbers mean.
When is allergy season in Portland?
Portland follows the typical pattern for the Pacific Northwest. Dates move a few weeks with each year's weather.
| Pollen | Typical season | Notes |
|---|---|---|
| Tree | January to May | Alder can start in January; birch peaks in March and April. |
| Grass | May to July | Very strong in June, especially near the grass-seed farms of the Willamette Valley. |
| Weed | July to September | Light compared with the East; ragweed is rare. |
Quietest time: Fall and early winter, after the first rains.
Get a pollen alert for Portland
Pollenary is a free iPhone app. Type ZIP 97204 (or your own), tick the pollen that bothers you, and it sends one push each morning when that pollen reaches your level, with the plants named. No account and no location tracking.
Questions
What is the pollen count in Portland today?
Pollen in Portland, OR is None on Thu Nov 5. No tree, grass or weed pollen is forecast in the air.
When is allergy season in Portland?
In the Pacific Northwest the typical seasons are: Tree: January to May; Grass: May to July; Weed: July to September. The quiet time is fall and early winter, after the first rains. Exact dates move with the weather each year.
Which pollen is in the air in Portland right now?
Very little. On Thu Nov 5 the forecast shows no tree, grass or weed pollen above zero.
How can I get a pollen alert for Portland?
Pollenary sends a free morning push when the pollen you choose (tree, grass, ragweed, weed or mold) reaches your level in Portland. It needs no account; you type ZIP 97204 or any other ZIP.
Nearby cities
Pollen data by Google (Universal Pollen Index, 0–5). Pollen levels are a forecast, not a medical measurement. Pollenary is not a medical device and does not diagnose or treat any condition. Talk to a doctor about your allergies.