Ragweed Pollen Count in Keizer, OR — Today

Pollen by type in Keizer

• Keizer tree pollen count
• Keizer grass pollen count
• Keizer pollen count

What is the ragweed pollen count in Keizer today?

The Keizer ragweed pollen index today is 18 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Ragweed pollen is the dominant allergen in Keizer today. 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 Ragweed 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 ragweed pollen reading is the headline above.

Species driving Keizer’s ragweed 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: ragweed pollen reads 18 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.

Plants affecting Keizer now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Keizer. The type summary stands: ragweed pollen reads 18 (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 ragweed pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

Weeds are the minor act — sagebrush and tumbleweed east of the Cascades carry into September. This month sits outside the usual ragweed pollen window for the Pacific Northwest pattern, so today’s ragweed 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 15 (Low), and the ragweed pollen index on this page is 18 (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 ragweed 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 ragweed 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.