Carlisle, PA Pollen Count

What is the Carlisle pollen count today?

The Carlisle pollen count today is 13 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.

Short answer for anyone searching pollen count today Carlisle: this page is updated every morning with the day’s modelled reading.

Carlisle allergies today

Carlisle allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 13 (Low), driven mainly by Ragweed. When people ask about Carlisle allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Carlisle.

Allergies in Carlisle 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 Carlisle 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 Carlisle allergy forecast: today reads 13 (Low), and the day-by-day outlook shows whether Carlisle 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 Carlisle today records is this same combined reading — tree, grass, weed and mold in one index.

The Carlisle allergy count today is 13 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.

Pollen count today Carlisle: the 5-day forecast

Pollen Atlas forecasts Carlisle’s pollen count to peak on Sunday at 13 (Low) over the next 5 days.

Pollen by type in Carlisle

• Carlisle tree pollen count
• Carlisle grass pollen count
• Carlisle ragweed pollen count

What is driving Carlisle’s pollen today

The shape of today’s 13 (Low) is set by weed pollen at 13 (Low on its own scale) — about 92% of the four category readings added together, 12.4 points clear of the next category, tree pollen at 0.6. 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 Carlisle, 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 7 to 13, never changing band. Today’s 13 sits 2 points above the window’s average of 11 — a moving window, worth reading day by day rather than from the average.

Plants affecting Carlisle now

Detailed plant-by-plant readings for Carlisle 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 0.6 (Low).

Weed pollen is one of the categories with a non-zero reading today, at 13 (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.

Carlisle pollen through the year

The Carlisle pollen year runs in chapters, set by the Northeast pattern and the Pennsylvania calendar. Trees come first: trees open in late March and build to an oak-led peak in May. Grasses take the middle of the year: grasses hold from late May into July. Weeds close it out: 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 Carlisle 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 Carlisle, 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.

Carlisle in today’s national picture

At 13 (Low), Carlisle ranks joint 63918th of the 217874 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country today is Tignes, France at 66, and the lowest is Извор, North Macedonia at 5. The whole table spans 61 points today — a wide-open day, when the top and bottom of the table are effectively in different seasons.

Around Carlisle: Carlisle Barracks, PA (2 miles away) reads 13 (Low); Schlusser, PA (3 miles away) reads 13 (Low); Plainfield, PA (4 miles away) reads 16 (Low). Carlisle reads exactly level with its nearest tracked neighbour today. Across Pennsylvania’s 1957 tracked cities, today runs from 5 in Erie to 26 in Cochranville.

Pollen totals are population numbers; symptoms are personal. The same reading can leave one Carlisle resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Carlisle, 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.

Carlisle in its local area

Carlisle is a borough in Cumberland County, Pennsylvania. Its population is 21,335 (ACS 2023).

Carlisle anchors the forecast-point group of 2 places that share this reading. Within the group, Carlisle ranks joint 1st; across Pennsylvania’s 1957 tracked cities, it ranks joint 481st today.

Like every Pollen Atlas city page, the Carlisle, PA pollen count is refreshed each morning.

Nearby cities

• Carlisle Barracks pollen count (2 miles away)
• Schlusser pollen count (3 miles away)
• Plainfield pollen count (4 miles away)
• Boiling Springs pollen count (4 miles away)
• Mount Holly Springs pollen count (6 miles away)
• New Kingstown pollen count (7 miles away)

From Pollen Atlas News

• Pennsylvania allergy season
• Ragweed season