Grass Pollen Count in Catonsville, MD — Today

Pollen by type in Catonsville

• Catonsville tree pollen count
• Catonsville ragweed pollen count
• Catonsville pollen count

What is the grass pollen count in Catonsville today?

The Catonsville grass pollen index today is 1 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Catonsville’s overall pollen count today is 22 (Low) across all types. See the full Catonsville pollen count for the overall index and every type together.

Catonsville is a census-designated place in Baltimore County, Maryland. Its population is 42,717 (ACS 2023).

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

Species driving Catonsville’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 Catonsville is 1 (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 Northeast pattern, the plants that typically shape this city’s year are spring trees, late-spring grasses and late-summer ragweed.

The Maryland allergy season guide singles out oak, the mid-Atlantic heavyweight, peaking hard in late April and May.

Plants affecting Catonsville now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Catonsville. The type summary stands: grass pollen reads 1 (Low) today.

In the Northeast pattern, the plants that typically shape this city’s year are spring trees, late-spring grasses and late-summer 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 late May into July. This month sits outside the usual grass pollen window for the Northeast pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Maryland allergy season guide singles out oak, the mid-Atlantic heavyweight, peaking hard in late April and May.

Catonsville allergies today

Catonsville allergies today are set by the same reading as the Catonsville pollen count today: the Total Pollen Index is 22 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Catonsville allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Catonsville.

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