Grass Pollen Count in Head of the Harbor, NY — Today

Updated Saturday, November 7, 2026

This reading is the forecast point shared with Smithtown, NY — 2 nearby places use the same point; Head of the Harbor is 0.7 km from it.

Pollen by type in Head of the Harbor

What is the grass pollen count in Head of the Harbor today?

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

Modelled pollen risk index — not a measured count.

Head of the Harbor’s overall pollen count today is 7 (Low) across all types. See the full Head of the Harbor pollen count for the overall index and every type together.

Head of the Harbor Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 77Low
Sunday, November 815Low
Monday, November 912Low
Tuesday, November 1015Low
Wednesday, November 1115Low

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 Head of the Harbor’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Head of the Harbor’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 Head of the Harbor 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 New York allergy season guide singles out birch and oak, preceded by elm and maple.

Plants affecting Head of the Harbor now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Head of the Harbor. 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 New York allergy season guide singles out birch and oak, preceded by elm and maple.

Head of the Harbor allergies today

Head of the Harbor allergies today are set by the same reading as the Head of the Harbor pollen count today: the Total Pollen Index is 7 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Head of the Harbor allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Head of the Harbor.

Allergies in Head of the Harbor follow the New York calendar set out on the full Head of the Harbor 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 Head of the Harbor 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 Head of the Harbor allergy forecast for the grass pollen season: it shows whether Head of the Harbor 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.

See the full Head of the Harbor pollen count — all types, the overall index and today’s ranking context

Head of the Harbor tree pollen count

Head of the Harbor ragweed pollen count

See how Head of the Harbor ranks in today's pollen count rankings — the worst cities for allergies today

See Head of the Harbor on the pollen map

Every pollen type, with photos and seasons: the pollen directory

New York allergy season guide

Grass pollen season

Find an allergist in Head of the Harbor, NY

Pollen indexes: a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data. Plant detail: Google Pollen API. Index values are modelled, not measured counts. Sources: CDC/NAB; USA-NPN; GBIF (CC BY); ESA WorldCover (CC BY 4.0).