Ragweed Pollen Count in Cold Spring Harbor, NY — Today
Updated Saturday, November 7, 2026
Pollen by type in Cold Spring Harbor
What is the ragweed pollen count in Cold Spring Harbor today?
The Cold Spring Harbor ragweed pollen index today is 8 (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 Cold Spring Harbor today. See the full Cold Spring Harbor pollen count for the overall index and every type together.
Cold Spring Harbor Ragweed Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 6 | Low |
| Sunday, November 8 | 14 | Low |
| Monday, November 9 | 14 | Low |
| Tuesday, November 10 | 14 | Low |
| Wednesday, November 11 | 14 | Low |
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 Cold Spring Harbor’s overall trend across the week. Today’s ragweed pollen reading is the headline above.
Species driving Cold Spring Harbor’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 8 (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 Cold Spring Harbor now — ragweed pollen
Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Cold Spring Harbor. The type summary stands: ragweed pollen reads 8 (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.
Cold Spring Harbor allergies today
Cold Spring Harbor allergies today are set by the same reading as the Cold Spring Harbor pollen count today: the Total Pollen Index is 6 (Low), and the ragweed pollen index on this page is 8 (Low) of it. When people ask about Cold Spring Harbor allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Cold Spring Harbor.
Allergies in Cold Spring Harbor follow the New York calendar set out on the full Cold Spring 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 Cold Spring Harbor 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 Cold Spring Harbor allergy forecast for the ragweed pollen season: it shows whether Cold Spring 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.
Cold Spring Harbor tree pollen count
Cold Spring Harbor grass pollen count
See Cold Spring Harbor on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).