Tree Pollen Count in Harrington, WA — Today

Updated Saturday, November 7, 2026

Pollen by type in Harrington

What is the tree pollen count in Harrington today?

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

Modelled pollen risk index — not a measured count.

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

Harrington Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 729Low
Sunday, November 828Low
Monday, November 928Low
Tuesday, November 1028Low
Wednesday, November 1128Low

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

Species driving Harrington’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 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Harrington now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Harrington. The type summary stands: tree 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 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.

Harrington allergies today

Harrington allergies today are set by the same reading as the Harrington pollen count today: the Total Pollen Index is 29 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Harrington allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Harrington.

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

Harrington grass pollen count

Harrington ragweed pollen count

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

See Harrington 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 Harrington, 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).