Hillsborough, NC Pollen Count Today
Hillsborough, NC · 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).
Hillsborough, NC
Weeds Index
How active weeds pollen is today (0–100).
Hillsborough, NC
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Hillsborough Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Hillsborough residents check each morning
The Hillsborough pollen count today is 14 (Low). The main driver is Ragweed, with weed pollen at 18 today. That total sits on a narrow base: weed pollen is 18 while tree pollen is just 5 and grass pollen 1. Plant-by-plant detail for Hillsborough, NC follows, along with the outlook for the days ahead. 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 Hillsborough 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.
To see whether today’s pollen level holds, check the 5-day Hillsborough pollen forecast below — it is currently holding, with Saturday the highest day in the window.
This is the pollen count Hillsborough residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Hillsborough pollen count today?
The Hillsborough pollen count today is 14 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Hillsborough: this page is updated every morning with the day’s modelled reading.
Hillsborough allergies today
Hillsborough allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 14 (Low), driven mainly by Ragweed. When people ask about Hillsborough allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Hillsborough.
Allergies in Hillsborough follow the North Carolina 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 Hillsborough 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 Hillsborough allergy forecast: today reads 14 (Low), and the day-by-day outlook shows whether Hillsborough 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 Hillsborough today records is this same combined reading — tree, grass, weed and mold in one index.
The Hillsborough allergy count today is 14 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Hillsborough: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Saturday, November 7 | 14 | Low |
| Sunday, November 8 | 14 | Low |
| Monday, November 9 | 14 | Low |
| Tuesday, November 10 | 14 | Low |
| Wednesday, November 11 | 13 | Low |
Pollen Atlas forecasts Hillsborough’s pollen count to peak on Saturday at 14 (Low) over the next 5 days.
Pollen by type in Hillsborough
What is driving Hillsborough’s pollen today
The shape of today’s 14 (Low) is set by weed pollen at 18 (Low on its own scale) — about 75% of the four category readings added together, 13 points clear of the next category, tree pollen at 5. 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 is the North Carolina calendar working as expected — November falls in the closing weeks of the state’s weed chapter.
In the plant detail, Ragweed (weed) carries the strongest single plant reading, at a Universal Pollen Index of 1 (Very Low). None of the plants in today’s detail is one of the state guide’s signature names for North Carolina — a single day’s detail and a season’s pattern are different lenses, and both are printed on this page for that reason.
Across the five-day window the Total Pollen Index runs from 13 to 14, never changing band. Today’s 14 sits 0 points above the window’s average of 13.8 — a steady window, in which one day reads much like the next.
Plants affecting Hillsborough now
One plant is listed in today’s detail for Hillsborough.
- Ragweed (weed): Universal Pollen Index 1 (Very Low) — present in today’s readings
Every pollen type, with photos and seasons: the pollen directory.
Hillsborough pollen through the year
Chapter by chapter, the Hillsborough pollen year runs like this:
- Trees can start as early as February and peak in April.
- Grasses follow in May and run through the summer.
- Ragweed runs from mid-August to the first frost.
- Mold is the quiet fourth player, sustained by river-valley humidity between the pollen waves.
The North Carolina allergy season guide names oak-family pollens — not the visible pine dust, which is a weak allergen flowering in the same weeks. Charlotte and Raleigh often peak on the same warm, dry spring days, because the same Piedmont tree mix dominates both metros — and Raleigh placed in the national top ten of the AAFA’s 2025 Allergy Capitals report. The Piedmont’s spring Tree Index peaks weeks before the mountain season at higher elevations, and weeks after the coastal plain begins.
November in Hillsborough sits inside the weed chapter of the North Carolina year, in its closing weeks — the part of the calendar today’s readings should be judged against. Between them, the three chapters cover 10 months of the North Carolina year, February to November — a long season by national standards, with only a short quiet gap. The full calendar is set out in the North Carolina allergy season guide.
How to read this index
Pollen Atlas reports the Hillsborough 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 Hillsborough, NC 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.
Hillsborough in today’s national picture
At 14 (Low), Hillsborough ranks joint 71898th 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 Hillsborough: Efland, NC (4 miles away) reads 14 (Low); Mebane, NC (10 miles away) reads 15 (Low); Carrboro, NC (10 miles away) reads 15 (Low). Hillsborough reads exactly level with its nearest tracked neighbour today. Across North Carolina’s 774 tracked cities, today runs from 7 in Kitty Hawk to 28 in Rowland.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Hillsborough resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in Hillsborough, NC 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.
Hillsborough in its local area
Across North Carolina’s 774 tracked cities, Hillsborough ranks joint 593rd today.
Like every Pollen Atlas city page, the Hillsborough, NC pollen count is refreshed each morning.
Nearby cities
- Efland pollen count (4 miles away)
- Mebane pollen count (10 miles away)
- Carrboro pollen count (10 miles away)
- Chapel Hill pollen count (11 miles away)
- Woodlawn pollen count (11 miles away)
- Durham pollen count (13 miles away)
From Pollen Atlas News
See how Hillsborough 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).