Grass Pollen Count in Castana, IA — Today

Pollen by type in Castana

• Castana tree pollen count
• Castana ragweed pollen count
• Castana pollen count

What is the grass pollen count in Castana today?

The Castana 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.

Castana’s overall pollen count today is 28 (Low) across all types. See the full Castana pollen count for the overall index and every type together.

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

Species driving Castana’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 Castana 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 Midwest & Great Lakes pattern, the plants that typically shape this city’s year are spring trees, late-spring and summer grasses, and late-summer and autumn ragweed.

The Iowa allergy season guide singles out ragweed, the state’s dominant allergen, over a maple, oak and hickory spring.

Plants affecting Castana now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Castana. The type summary stands: grass pollen reads 0.6 (Low) today.

In the Midwest & Great Lakes pattern, the plants that typically shape this city’s year are spring trees, late-spring and summer grasses, and late-summer and autumn ragweed — 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 hold from May through July. This month sits outside the usual grass pollen window for the Midwest & Great Lakes pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Iowa allergy season guide singles out ragweed, the state’s dominant allergen, over a maple, oak and hickory spring.

Castana allergies today

Castana allergies today are set by the same reading as the Castana pollen count today: the Total Pollen Index is 28 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Castana allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Castana.

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