Grass Pollen Count in Castle Rock, WA — Today

Pollen by type in Castle Rock

• Castle Rock tree pollen count
• Castle Rock ragweed pollen count
• Castle Rock pollen count

What is the grass pollen count in Castle Rock today?

The Castle Rock 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.

Castle Rock’s overall pollen count today is 11 (Low) across all types. See the full Castle Rock pollen count for the overall index and every type together.

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

Species driving Castle Rock’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 Castle Rock 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 Washington allergy season guide singles out alder and hazelnut from January on the west side, and timothy and sagebrush on Spokane’s continental clock.

Plants affecting Castle Rock now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Castle Rock. 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 Washington allergy season guide singles out alder and hazelnut from January on the west side, and timothy and sagebrush on Spokane’s continental clock.

Castle Rock allergies today

Castle Rock allergies today are set by the same reading as the Castle Rock pollen count today: the Total Pollen Index is 11 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Castle Rock allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Castle Rock.

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