Tree Pollen Count in SeaTac, WA — Today

Pollen by type in SeaTac

• SeaTac grass pollen count
• SeaTac ragweed pollen count
• SeaTac pollen count

What is the tree pollen count in SeaTac today?

The SeaTac tree pollen index today is 14 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

SeaTac’s overall pollen count today is 18 (Low) across all types. See the full SeaTac pollen count for the overall index and every type together.

SeaTac is a city in King County, Washington. Its population is 31,143 (ACS 2023).

SeaTac Tree Pollen Count: 5-Day Forecast

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

Species driving SeaTac’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 14 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting SeaTac now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for SeaTac. The type summary stands: tree pollen reads 14 (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.

SeaTac allergies today

SeaTac allergies today are set by the same reading as the SeaTac pollen count today: the Total Pollen Index is 18 (Low), and the tree pollen index on this page is 14 (Low) of it. When people ask about SeaTac allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for SeaTac.

Allergies in SeaTac follow the Washington calendar set out on the full SeaTac 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 SeaTac 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 SeaTac allergy forecast for the tree pollen season: it shows whether SeaTac 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.