Mount Oliver, PA Pollen Count Today
Mount Oliver, PA · Updated Saturday, November 7, 2026
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).
Mount Oliver, PA
Weeds Index
How active weeds pollen is today (0–100).
Mount Oliver, PA
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Mount Oliver Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Mount Oliver residents check each morning
The Mount Oliver pollen count today is 19 (Low). The main driver is Ragweed, with weed pollen at 24 today. Weed pollen leads the split at 24 (Low on its own scale), followed by grass pollen at 1 and tree pollen at 0.6. Below, the plant detail and the multi-day outlook show whether today is the pattern or the exception. Pollen Atlas updated this count on Saturday, November 7, 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 Mount Oliver 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 Mount Oliver pollen forecast below — it is currently holding, with Saturday the highest day in the window.
This is the pollen count Mount Oliver residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Mount Oliver pollen count today?
The Mount Oliver 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 Mount Oliver: this page is updated every morning with the day’s modelled reading.
Mount Oliver allergies today
Mount Oliver 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 Mount Oliver allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Mount Oliver.
Allergies in Mount Oliver 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 Mount Oliver 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 Mount Oliver allergy forecast: today reads 19 (Low), and the day-by-day outlook shows whether Mount Oliver 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 Mount Oliver today records is this same combined reading — tree, grass, weed and mold in one index.
The Mount Oliver allergy count today is 19 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Mount Oliver: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 19 | Low |
| Sunday, November 8 | 19 | Low |
| Monday, November 9 | 18 | Low |
| Tuesday, November 10 | 18 | Low |
| Wednesday, November 11 | 18 | Low |
Pollen Atlas forecasts Mount Oliver’s pollen count to peak on Saturday at 19 (Low) over the next 5 days.
Pollen by type in Mount Oliver
What is driving Mount Oliver’s pollen today
The shape of today’s 19 (Low) is set by weed pollen at 24 (Low on its own scale) — about 94% of the four category readings added together, 23 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 Mount Oliver, 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 18.4 — a steady window, in which one day reads much like the next.
Plants affecting Mount Oliver now
Detailed plant-by-plant readings for Mount Oliver 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 24 (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.
Mount Oliver pollen through the year
Three chapters make the Pennsylvania pollen year, and Mount Oliver follows them in the Northeast order. The tree chapter: trees open in late March and build to an oak-led peak in May. The grass chapter: grasses hold from late May into July. The weed chapter: 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.
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. The Pennsylvania guide singles out oak, peaking in late April and May, with maple sharing the spring stage.
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 Mount Oliver 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 Mount Oliver, 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.
Mount Oliver in today’s national picture
At 19 (Low), Mount Oliver ranks joint 54028th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Beja, Portugal at 52, and the lowest is Los Ángeles de San Rafael, Spain at 5. The whole table spans 47 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.
Around Mount Oliver: Pittsburgh, PA (2 miles away) reads 19 (Low); Brentwood, PA (3 miles away) reads 19 (Low); Dormont, PA (3 miles away) reads 19 (Low). Mount Oliver reads exactly level with its nearest tracked neighbour today. Across Pennsylvania’s 1957 tracked cities, today runs from 5 in Scranton to 30 in Kutztown University.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Mount Oliver resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Mount Oliver, 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.
Mount Oliver in its local area
Across Pennsylvania’s 1957 tracked cities, Mount Oliver ranks joint 547th today.
Like every Pollen Atlas city page, the Mount Oliver, PA pollen count is refreshed each morning.
Nearby cities
- Pittsburgh pollen count (2 miles away)
- Brentwood pollen count (3 miles away)
- Dormont pollen count (3 miles away)
- Baldwin pollen count (3 miles away)
- Whitehall pollen count (4 miles away)
- Castle Shannon pollen count (4 miles away)
From Pollen Atlas News
See how Mount Oliver ranks in today's pollen count rankings — the worst cities for allergies today
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).