Tree Pollen Count in Cayuse, OR

Last updated Friday, November 6, 2026

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

This reading is the forecast point shared with Mission, OR — 4 nearby places use the same point; Cayuse is 8.5 km from it.

Pollen by type in Cayuse

What is the tree pollen count in Cayuse today?

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

Modelled pollen risk index — not a measured count.

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

Cayuse Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 629Low
Saturday, November 729Low
Sunday, November 828Low
Monday, November 928Low
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 Cayuse’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Cayuse’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 Cayuse now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Cayuse. 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 Oregon allergy season guide singles out alder and hazelnut early, then the Willamette Valley’s seed grasses.

Cayuse allergies today

Cayuse allergies today are set by the same reading as the Cayuse 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 Cayuse allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Cayuse.

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

Cayuse grass pollen count

Cayuse ragweed pollen count

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

See Cayuse on the pollen map

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

Oregon allergy season guide

Tree pollen season

Find an allergist in Cayuse, 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).