Ragweed Pollen Count in Greenhill, United Kingdom — Today

Updated Saturday, November 7, 2026

This reading is the forecast point for Greenhill — 2 nearby places use the same point; Greenhill is 0.3 km from it.

Pollen by type in Greenhill

What is the ragweed pollen count in Greenhill today?

The Greenhill ragweed pollen index today is 37 (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 Greenhill today. See the full Greenhill pollen count for the overall index and every type together.

Greenhill is in Greater London, England, United Kingdom. Its population is 9,324 (GeoNames).

Greenhill Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 732Low
Sunday, November 831Low
Monday, November 934Low
Tuesday, November 1024Low
Wednesday, November 1114Low

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

Species driving Greenhill’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 37 (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 Greenhill now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Greenhill. The type summary stands: ragweed pollen reads 37 (Low) today.

In the Atlantic West pattern, the plants that typically shape this city’s year are early hazel and alder, a spring birch and oak wave, late-spring and summer grasses, and a modest late-summer weed finish — 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.

Weeds are the minor closing act — mugwort through late summer, with ragweed localised and generally light this far west. This month sits outside the usual ragweed pollen window for the Atlantic West pattern, so today’s ragweed pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No United Kingdom allergy season guide is published yet, so the seasonal context here follows the Atlantic West regional pattern.

Greenhill allergies today

Greenhill allergies today are set by the same reading as the Greenhill pollen count today: the Total Pollen Index is 32 (Low), and the ragweed pollen index on this page is 37 (Low) of it. When people ask about Greenhill allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Greenhill.

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

Greenhill tree pollen count

Greenhill grass pollen count

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

See Greenhill on the pollen map

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

Worst cities for allergies

Ragweed season

Find an allergist in Greenhill, United Kingdom

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).