North Plains, OR Pollen Calendar
Here is the month-by-month allergy season for North Plains, OR, based on Oregon's seasonal pollen pattern. Right now, in July, Grass is usually the allergen to watch. The worst month is typically June, and the calmest is January. For the exact numbers today, check your live reading below.
Today in North Plains
Monday, July 27, 2026
The North Plains Pollen Calendar, Month by Month
Each month is rated from Low to Very High, with the allergen that usually drives it. The current month is outlined.
What's Active in July
These allergens are usually in the air around North Plains this month:
Typical peak timing this month: early July to mid July.
The Worst and Best Months in North Plains
North Plains's pollen usually peaks in June, driven by Grass. If your allergies flare on the same weeks every year, that is usually why. The calmest month is typically January.
Oregon has an early tree season and an intense grass season in the Willamette Valley in late spring and early summer.
A pollen calendar shows the usual pattern, but weather shifts it. A warm winter pulls tree season earlier, and a late frost stretches ragweed into November. Start any allergy medication a week or two before your worst month, and check the daily count to catch the spikes. If symptoms hit hard every season, an allergist in Oregon can help with testing and longer-term options like allergy shots.
Keep Track of Pollen in North Plains
The calendar tells you what to expect. Your daily report tells you what's actually happening:
- North Plains pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- North Plains air quality — today's AQI and the pollutants behind it.
- Oregon pollen season — the statewide calendar and other cities.
- Today's worst pollen cities — see where North Plains ranks right now.
Get North Plains pollen alerts
We send a free email whenever pollen is High or Very High in North Plains. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.
Sign up for free alertsSeasonal pattern based on Oregon pollen data. Today's reading updated daily. MyPollenPal