Grass Pollen Count in Holley, OR

Last updated Friday, November 6, 2026

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

Pollen by type in Holley

What is the grass pollen count in Holley today?

The Holley 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.

Holley’s overall pollen count today is 17 (Low) across all types. See the full Holley pollen count for the overall index and every type together.

Holley Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 617Low
Saturday, November 717Low
Sunday, November 88Low
Monday, November 917Low
Tuesday, November 1017Low

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 Holley’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Holley’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 Holley 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 Oregon allergy season guide singles out alder and hazelnut early, then the Willamette Valley’s seed grasses.

Plants affecting Holley now — grass pollen

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

Holley allergies today

Holley allergies today are set by the same reading as the Holley pollen count today: the Total Pollen Index is 17 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Holley allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Holley.

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

Holley tree pollen count

Holley ragweed pollen count

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

See Holley on the pollen map

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

Oregon allergy season guide

Grass pollen season

Find an allergist in Holley, 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).