Grass Pollen Count in Keizer, OR

Pollen by type in Keizer

• Keizer tree pollen count
• Keizer ragweed pollen count
• Keizer pollen count

What is the grass pollen count in Keizer today?

The Keizer 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.

Keizer’s overall pollen count today is 21 (Low) across all types. See the full Keizer pollen count for the overall index and every type together.

Keizer is a city in Marion County, Oregon. Its population is 39,013 (ACS 2023).

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

Species driving Keizer’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 Keizer 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 Keizer now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Keizer. 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.

Keizer allergies today

Keizer allergies today are set by the same reading as the Keizer pollen count today: the Total Pollen Index is 21 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Keizer allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Keizer.

Allergies in Keizer follow the Oregon calendar set out on the full Keizer 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 Keizer 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 Keizer allergy forecast for the grass pollen season: it shows whether Keizer 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.