Tree Pollen Count in West Decatur, PA — Today
Updated Saturday, November 7, 2026
Pollen by type in West Decatur
What is the tree pollen count in West Decatur today?
The West Decatur tree pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
West Decatur’s overall pollen count today is 10 (Low) across all types. See the full West Decatur pollen count for the overall index and every type together.
West Decatur Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 10 | Low |
| Sunday, November 8 | 15 | Low |
| Monday, November 9 | 15 | Low |
| Tuesday, November 10 | 14 | Low |
| Wednesday, November 11 | 13 | 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 West Decatur’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving West Decatur’s tree 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: tree pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
Plants affecting West Decatur now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for West Decatur. The type summary stands: tree pollen reads 0.6 (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 tree pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Trees open in late March and build to an oak-led peak in May. This month sits outside the usual tree pollen window for the Northeast pattern, so today’s tree 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.
West Decatur allergies today
West Decatur allergies today are set by the same reading as the West Decatur pollen count today: the Total Pollen Index is 10 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about West Decatur allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for West Decatur.
Allergies in West Decatur follow the Pennsylvania calendar set out on the full West Decatur 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 West Decatur before heading outdoors, the tree 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 West Decatur allergy forecast for the tree pollen season: it shows whether West Decatur 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 West Decatur pollen count — all types, the overall index and today’s ranking context
West Decatur grass pollen count
West Decatur ragweed pollen count
See how West Decatur ranks in today's pollen count rankings — the worst cities for allergies today
See West Decatur 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).