Ragweed Pollen Count in Llewellyn, PA — Today

Updated Saturday, November 7, 2026

Pollen by type in Llewellyn

What is the ragweed pollen count in Llewellyn today?

The Llewellyn ragweed pollen index today is 19 (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 Llewellyn today. See the full Llewellyn pollen count for the overall index and every type together.

Llewellyn Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 715Low
Sunday, November 815Low
Monday, November 914Low
Tuesday, November 1014Low
Wednesday, November 1113Low

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

Species driving Llewellyn’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 19 (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 Llewellyn now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Llewellyn. The type summary stands: ragweed pollen reads 19 (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 Pennsylvania allergy season guide singles out oak, peaking in late April and May, with maple sharing the spring stage.

Llewellyn allergies today

Llewellyn allergies today are set by the same reading as the Llewellyn pollen count today: the Total Pollen Index is 15 (Low), and the ragweed pollen index on this page is 19 (Low) of it. When people ask about Llewellyn allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Llewellyn.

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

Llewellyn tree pollen count

Llewellyn grass pollen count

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

See Llewellyn on the pollen map

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

Pennsylvania allergy season guide

Ragweed season

Find an allergist in Llewellyn, PA

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).