Tree Pollen Count in Dayton, WA

Last updated Friday, November 6, 2026

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

Pollen by type in Dayton

What is the tree pollen count in Dayton today?

The Dayton tree pollen index today is 3 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Dayton’s overall pollen count today is 29 (Low) across all types. See the full Dayton pollen count for the overall index and every type together.

Dayton Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 629Low
Saturday, November 729Low
Sunday, November 820Low
Monday, November 929Low
Tuesday, November 1026Low

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 Dayton’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Dayton’s tree pollen

Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: tree pollen reads 3 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Dayton now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Dayton. The type summary stands: tree pollen reads 3 (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 tree pollen level means

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

Enjoy outdoor activities.

Alder and hazelnut can start in January west of the Cascades, with maple and oak following through April and May. This month sits outside the usual tree pollen window for the Pacific Northwest pattern, so today’s tree 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.

Dayton allergies today

Dayton allergies today are set by the same reading as the Dayton pollen count today: the Total Pollen Index is 29 (Low), and the tree pollen index on this page is 3 (Low) of it. When people ask about Dayton allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Dayton.

Allergies in Dayton follow the Washington calendar set out on the full Dayton 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 Dayton before heading outdoors, the tree 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 Dayton allergy forecast for the tree pollen season: it shows whether Dayton 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 Dayton pollen count — all types, the overall index and today’s ranking context

Dayton grass pollen count

Dayton ragweed pollen count

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

See Dayton on the pollen map

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

Washington allergy season guide

Tree pollen season

Find an allergist in Dayton, 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).