Ragweed Pollen Count in Ardsley, NY — Today

Updated Saturday, November 7, 2026

Pollen by type in Ardsley

What is the ragweed pollen count in Ardsley today?

The Ardsley ragweed pollen index today is 36 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Ragweed pollen is the dominant allergen in Ardsley today. See the full Ardsley pollen count for the overall index and every type together.

Ardsley Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 728Low
Sunday, November 828Low
Monday, November 927Low
Tuesday, November 1027Low
Wednesday, November 1127Low

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 Ardsley’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving Ardsley’s ragweed pollen

Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: ragweed pollen reads 36 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.

Plants affecting Ardsley now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Ardsley. The type summary stands: ragweed pollen reads 36 (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 ragweed pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

Ragweed builds from mid-August, peaks in September, and is ended by the first hard frost. This month sits outside the usual ragweed pollen window for the Northeast pattern, so today’s ragweed 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.

Ardsley allergies today

Ardsley allergies today are set by the same reading as the Ardsley pollen count today: the Total Pollen Index is 28 (Low), and the ragweed pollen index on this page is 36 (Low) of it. When people ask about Ardsley allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Ardsley.

Allergies in Ardsley follow the New York calendar set out on the full Ardsley 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 Ardsley before heading outdoors, the ragweed 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 Ardsley allergy forecast for the ragweed pollen season: it shows whether Ardsley 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 Ardsley pollen count — all types, the overall index and today’s ranking context

Ardsley tree pollen count

Ardsley grass pollen count

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

See Ardsley on the pollen map

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

New York allergy season guide

Ragweed season

Find an allergist in Ardsley, 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).