Grass Pollen Count in Sedro-Woolley, WA — Today

Updated Saturday, November 7, 2026

Pollen by type in Sedro-Woolley

What is the grass pollen count in Sedro-Woolley today?

The Sedro-Woolley 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.

Sedro-Woolley’s overall pollen count today is 9 (Low) across all types. See the full Sedro-Woolley pollen count for the overall index and every type together.

Sedro-Woolley is a city in Skagit County, Washington. Its population is 12,633 (ACS 2023).

Sedro-Woolley Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 79Low
Sunday, November 89Low
Monday, November 912Low
Tuesday, November 108Low
Wednesday, November 118Low

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 Sedro-Woolley’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Sedro-Woolley’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 Sedro-Woolley 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 Washington allergy season guide singles out alder and hazelnut from January on the west side, and timothy and sagebrush on Spokane’s continental clock.

Plants affecting Sedro-Woolley now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Sedro-Woolley. 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 Washington allergy season guide singles out alder and hazelnut from January on the west side, and timothy and sagebrush on Spokane’s continental clock.

Sedro-Woolley allergies today

Sedro-Woolley allergies today are set by the same reading as the Sedro-Woolley pollen count today: the Total Pollen Index is 9 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Sedro-Woolley allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Sedro-Woolley.

Allergies in Sedro-Woolley follow the Washington calendar set out on the full Sedro-Woolley 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 Sedro-Woolley 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 Sedro-Woolley allergy forecast for the grass pollen season: it shows whether Sedro-Woolley 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 Sedro-Woolley pollen count — all types, the overall index and today’s ranking context

Sedro-Woolley tree pollen count

Sedro-Woolley ragweed pollen count

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

See Sedro-Woolley on the pollen map

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

Washington allergy season guide

Grass pollen season

Find an allergist in Sedro-Woolley, WA

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).