Washington, PA Pollen Count
Washington, PA · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Washington — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen Overview
Today's overall pollen level and the dominant type (trees, weeds, grass, or mold).
Total Pollen Index
The combined pollen level across all types (0–100).
Washington, PA
Weeds Index
How active weeds pollen is today (0–100).
Washington, PA
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Washington Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Washington residents check each morning
The Washington pollen count today is 19 (Low). The main driver is Ragweed, with weed pollen at 25 today. That total sits on a narrow base: weed pollen is 25 while tree pollen is just 0.6 and grass pollen 1. Plant-by-plant detail for Washington, PA follows, along with the outlook for the days ahead. Pollen Atlas updated this count on Friday, November 6, 2026.
A Low band on the Pollen Atlas index means the Total Pollen Index has stayed in the lower part of the 0–100 scale. Readings in this band are built from low individual category values rather than from one large spike, and the category split above matters more than the headline number: a low total can still contain one category, such as weed pollen or mold, reading noticeably higher than the rest, which is why the split is printed on every Washington page.
Fall is ragweed season across most of the United States: ragweed plants release pollen from late summer into autumn, and weed pollen is typically the last major outdoor pollen category to fade as the weather cools. That pattern is why an autumn total is so often weed-led even when the headline number is low — tree and grass pollen have usually receded by then, leaving weed pollen, and on damp days mold, to make up most of what the index records. In the Northeast, autumn weed pollen typically winds down as colder nights arrive, so late-season totals can change quickly from week to week.
To see whether today’s pollen level holds, check the 5-day Washington pollen forecast below — it is currently holding, with Friday the highest day in the window.
This is the pollen count Washington residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Washington pollen count today?
The Washington pollen count today is 19 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Washington: this page is updated every morning with the day’s modelled reading.
Washington allergies today
Washington allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 19 (Low), driven mainly by Ragweed. When people ask about Washington allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Washington.
Allergies in Washington follow the Pennsylvania calendar set out below — the chapters, the plants behind them, and the 5-day forecast on this page show whether today is typical for the season or an exception to it. If you are checking allergies today in Washington before heading outdoors, the split at the top of this page is the part to read: it shows which pollen is doing the work today, not just how high the total sits.
Read the five-day table on this page as the Washington allergy forecast: today reads 19 (Low), and the day-by-day outlook shows whether Washington allergies are set to ease or build across the week — the days to plan outdoor time around are the ones where the index steps down, not just today.
In practice, the allergy count Washington today records is this same combined reading — tree, grass, weed and mold in one index.
The Washington allergy count today is 19 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Washington: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 19 | Low |
| Saturday, November 7 | 18 | Low |
| Sunday, November 8 | 18 | Low |
| Monday, November 9 | 18 | Low |
| Tuesday, November 10 | 18 | Low |
Pollen Atlas forecasts Washington’s pollen count to peak on Friday at 19 (Low) over the next 5 days.
Pollen by type in Washington
What is driving Washington’s pollen today
The shape of today’s 19 (Low) is set by weed pollen at 25 (Low on its own scale) — about 94% of the four category readings added together, 24 points clear of the next category, grass pollen at 1. A weed-led total is the classic late-year shape: tree and grass pollen have usually receded, leaving weed pollen — and on damp days mold — to make up most of what the index records. Weed pollen leading in November runs against the usual calendar — the Pennsylvania weed chapter runs August to October — so today’s lead is the model outranking the pattern, and this page reports the modelled reading first.
Plant-level detail is not in today’s feed for Washington, so the drivers have to be read from the category split above. The Pennsylvania guide’s account of Pennsylvania names oak, peaking in late April and May, with maple sharing the spring stage — the pollens behind readings of this shape in this state — and the split shows how much of today’s total each category is actually carrying.
Across the five-day window the Total Pollen Index runs from 18 to 19, never changing band. Today’s 19 sits 1 point above the window’s average of 18.2 — a steady window, in which one day reads much like the next.
Plants affecting Washington now
Detailed plant-by-plant readings for Washington were not returned in today\u2019s source data, so this section summarises the pollen types the index above is built from instead of listing individual plants.
Tree pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
Grass pollen is one of the categories with a non-zero reading today, at 1 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 25 (Low).
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\u2019s measurements.
Plant detail returns here automatically on any day the source data includes it.
Every pollen type, with photos and seasons: the pollen directory.
Washington pollen through the year
Chapter by chapter, the Washington pollen year runs like this:
- Trees open in late March and build to an oak-led peak in May.
- Grasses hold from late May into July.
- Ragweed builds from mid-August, peaks in September, and is ended by the first hard frost.
- Mold tracks the region’s humidity rather than a flowering calendar, and it fills the gaps between chapters.
The Pennsylvania allergy season guide names oak, peaking in late April and May, with maple sharing the spring stage. Pittsburgh and the high plateau run measurably later than Philadelphia: springs start later at elevation, and frosts arrive sooner. Cool-season grasses peak in late May and June, and mold joins the count through the humid mid-Atlantic summer.
November falls between the main chapters of the Pennsylvania pollen year — the tail of one and the approach of the next — so the calendar alone explains little today, and the modelled split above carries the story. Between them, the three chapters cover 8 months of the Pennsylvania year, March to October — a compressed season, which is why its chapters arrive in quick succession. The full calendar is set out in the Pennsylvania allergy season guide.
How to read this index
Pollen Atlas reports the Washington pollen count on a Total Pollen Index from 0 to 100, built from separate tree, grass and weed readings. The total is a summary, not an average of the three: a single strong category can lift it, and three quiet categories can hold it down even in a month when Washington, PA pollen is usually more active. Index values are a modelled pollen risk index computed by Pollen Atlas from open weather, vegetation and phenology data, calibrated against CDC/NAB season data, with plant detail by the Google Pollen API. The index is a modelled 0–100 scale, not a measured count, and figures update through the day, so a morning and an evening visit to this page can legitimately show different numbers.
Washington in today’s national picture
At 19 (Low), Washington ranks joint 53539th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Serpa, Portugal at 53, and the lowest is Galiakberovo, Russia at 5. The whole table spans 48 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Washington: East Washington, PA (1 miles away) reads 19 (Low); Laboratory, PA (2 miles away) reads 19 (Low); Meadowlands, PA (3 miles away) reads 19 (Low). Washington reads exactly level with its nearest tracked neighbour today. Across Pennsylvania’s 1957 tracked cities, today runs from 5 in Scranton to 30 in Belleville.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Washington resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Washington, PA can test whether tree, grass, weed or mold is the category that matters for you — the four readings at the top of this page are the starting point for that conversation.
Washington in its local area
Washington is a city in Washington County, Pennsylvania. Its population is 13,361 (ACS 2023).
Across Pennsylvania’s 1957 tracked cities, Washington ranks joint 209th today.
Like every Pollen Atlas city page, the Washington, PA pollen count is refreshed each morning.
Nearby cities
- East Washington pollen count (1 miles away)
- Laboratory pollen count (2 miles away)
- Meadowlands pollen count (3 miles away)
- Wolfdale pollen count (3 miles away)
- McGovern pollen count (4 miles away)
- Green Hills pollen count (5 miles away)
From Pollen Atlas News
See how Washington ranks in today's pollen count rankings — the worst cities for allergies today
See Washington on the US pollen map
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).