Grass Pollen Count in Heathrow, FL

Last updated Friday, November 6, 2026

This page shows the most recent reading available for Heathrow — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen by type in Heathrow

What is the grass pollen count in Heathrow today?

The Heathrow grass pollen index today is 5 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Heathrow’s overall pollen count today is 15 (Low) across all types. See the full Heathrow pollen count for the overall index and every type together.

Heathrow Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 615Low
Saturday, November 718Low
Sunday, November 820Low
Monday, November 920Low
Tuesday, November 1018Low

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

Species driving Heathrow’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 Heathrow is 5 (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 Florida pattern, the plants that typically shape this city’s year are trees, grasses and weeds spread across a long, mild season.

The Florida allergy season guide singles out oak, the signature spring event that often begins in February.

Plants affecting Heathrow now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Heathrow. The type summary stands: grass pollen reads 5 (Low) today.

In the Florida pattern, the plants that typically shape this city’s year are trees, grasses and weeds spread across a long, mild season — 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 spring into October or later. This month sits outside the usual grass pollen window for the Florida pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Florida allergy season guide singles out oak, the signature spring event that often begins in February.

Heathrow allergies today

Heathrow allergies today are set by the same reading as the Heathrow pollen count today: the Total Pollen Index is 15 (Low), and the grass pollen index on this page is 5 (Low) of it. When people ask about Heathrow allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Heathrow.

Allergies in Heathrow follow the Florida calendar set out on the full Heathrow 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 Heathrow 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 Heathrow allergy forecast for the grass pollen season: it shows whether Heathrow 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 Heathrow pollen count — all types, the overall index and today’s ranking context

Heathrow tree pollen count

Heathrow ragweed pollen count

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

See Heathrow on the pollen map

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

Florida allergy season guide

Grass pollen season

Find an allergist in Heathrow, FL

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).