Grass Pollen Count in Wasco, OR

Last updated Friday, November 6, 2026

This page shows the most recent reading available for Wasco — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen by type in Wasco

What is the grass pollen count in Wasco today?

The Wasco grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Wasco’s overall pollen count today is 28 (Low) across all types. See the full Wasco pollen count for the overall index and every type together.

Wasco Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 628Low
Saturday, November 726Low
Sunday, November 828Low
Monday, November 928Low
Tuesday, November 1025Low

Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Wasco’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Wasco’s grass pollen

The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Wasco is 0.6 (Low), and the 5-day overall trend above shows the shape of the week.

As regional context only — not as today’s readings — in the Pacific Northwest pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in the Pacific Northwest pattern.

The Oregon allergy season guide singles out alder and hazelnut early, then the Willamette Valley’s seed grasses.

Plants affecting Wasco now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Wasco. The type summary stands: grass pollen reads 0.6 (Low) today.

In the Pacific Northwest pattern, the plants that typically shape this city’s year are spring trees and late-spring grasses in the Pacific Northwest pattern — named here as regional context only, not as today’s readings.

Plant detail returns here automatically on any day the feed includes it.

What this grass pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

Grasses run from May, peaking in late spring and early summer. This month sits outside the usual grass pollen window for the Pacific Northwest pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Oregon allergy season guide singles out alder and hazelnut early, then the Willamette Valley’s seed grasses.

Wasco allergies today

Wasco allergies today are set by the same reading as the Wasco pollen count today: the Total Pollen Index is 28 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Wasco allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Wasco.

Allergies in Wasco follow the Oregon calendar set out on the full Wasco page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Wasco before heading outdoors, the grass pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.

Read the five-day overall trend above as the Wasco allergy forecast for the grass pollen season: it shows whether Wasco allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.

See the full Wasco pollen count — all types, the overall index and today’s ranking context

Wasco tree pollen count

Wasco ragweed pollen count

See how Wasco ranks in today's pollen count rankings — the worst cities for allergies today

See Wasco on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Oregon allergy season guide

Grass pollen season

Find an allergist in Wasco, OR

Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).