St. John's, NL Pollen Count
St. John's, NL · Last updated Thursday, November 5, 2026
This page shows the most recent reading available for St. John's — from Thursday, November 5, 2026 (2 days 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).
St. John's, NL
Grass Index
How active grass pollen is today (0–100).
St. John's, NL
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day St. John's Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count St. John's residents check each morning
The St. John's pollen count today is 18 (Low). No single plant stands out in today’s readings; the Grass category is the one the index is led by. The full split is tree pollen 0.6, grass pollen 23, weed pollen 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 Thursday, November 5, 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 grass pollen, reading noticeably higher than the rest, which is why the split is printed on every St. John's page.
Outside its main late-spring and early-summer window, grass pollen usually appears as a small background value rather than the driver of the total. A low grass reading alongside a higher weed or mold value is a typical off-peak pattern. Grass should be read from its own value on this page, not assumed from the calendar: the index reports today’s modelled value, and the modelled value outranks any general seasonal expectation.
To see whether today’s pollen level holds, check the 5-day St. John's pollen forecast below — it is currently easing, with Thursday the highest day in the window.
This is the pollen count St. John's residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the St. John's pollen count today?
The St. John's pollen count today is 18 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Grass.
Short answer for anyone searching pollen count today St. John's: this page is updated every morning with the day’s modelled reading.
St. John's allergies today
St. John's allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 18 (Low), driven mainly by Grass. When people ask about St. John's allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for St. John's.
Allergies in St. John's follow the Newfoundland and Labrador 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 St. John's 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 St. John's allergy forecast: today reads 18 (Low), and the day-by-day outlook shows whether St. John's 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 St. John's today records is this same combined reading — tree, grass, weed and mold in one index.
The St. John's allergy count today is 18 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today St. John's: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Thursday, November 5 | 18 | Low |
| Friday, November 6 | 12 | Low |
| Saturday, November 7 | 8 | Low |
| Sunday, November 8 | 8 | Low |
| Monday, November 9 | 8 | Low |
Pollen Atlas forecasts St. John's’s pollen count to peak on Thursday at 18 (Low) over the next 5 days.
Pollen by type in St. John's
What is driving St. John's’s pollen today
The shape of today’s 18 (Low) is set by grass pollen at 23 (Low on its own scale) — about 95% of the four category readings added together, 22.4 points clear of the next category, tree pollen at 0.6. Grass-led totals tend to hold a level for days at a time rather than spike and clear, because grasses pollinate over an extended period. Grass pollen leading in November runs against the usual calendar — the Newfoundland and Labrador grass chapter runs May to September — 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 St. John's, so the drivers have to be read from the category split above — it shows how much of today’s total each category is actually carrying, and plant detail returns here automatically on any day the feed includes it.
Across the five-day window the Total Pollen Index runs from 8 to 18, never changing band. Today’s 18 sits 7 points above the window’s average of 10.8 — a moving window, worth reading day by day rather than from the average.
Plants affecting St. John's now
Detailed plant-by-plant readings for St. John's 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 23 (Low).
Weed pollen is one of the categories with a non-zero reading today, at 0.6 (Low).
In the Southeast pattern, the plants that typically shape this city’s year are spring trees, warm-season 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.
St. John's pollen through the year
Three chapters make the Newfoundland and Labrador pollen year, and St. John's follows them in the Southeast order. The tree chapter: trees can start as early as February and peak in April. The grass chapter: grasses follow in May and run through the summer. The weed chapter: ragweed runs from mid-August to the first frost. Mold is the quiet fourth player, sustained by river-valley humidity between the pollen waves.
No Newfoundland and Labrador allergy season guide is published yet, so this page does not single out signature pollens for St. John's — the calendar above is the Southeast regional pattern, and the plant detail on this page names what today’s feed actually records.
November in St. John's sits inside the weed chapter of the Newfoundland and Labrador 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 Newfoundland and Labrador year, February to November — a long season by national standards, with only a short quiet gap. No Newfoundland and Labrador allergy season guide is published yet — this calendar follows the Southeast regional pattern. See St. John's pollen count rankings and St. John's on the pollen heatmap.
How to read this index
Pollen Atlas reports the St. John's 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 whatever the month. 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.
St. John's in today’s US & Canada picture
At 18 (Low), St. John's ranks joint 56739th of the 90896 cities Pollen Atlas tracks today — in the middle of the combined US & Canada table. The highest reading on the combined table 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 St. John's: Cape Breton, NS (363 miles away) reads 13 (Low); Halifax, NS (556 miles away) reads 5 (Low); Moncton, NB (579 miles away) reads 5 (Low). St. John's reads 5 points higher than its nearest tracked neighbour today. Across the wider Southeast today, readings run from 5 in Brandermill, VA to 29 in Trumann, AR.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one St. John's resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every ragweed season, allergists in St. John's, NL 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.
St. John's in its local area
St. John's is in St. John's, Newfoundland and Labrador, Canada. Its population is 110,525 (GeoNames).
Like every Pollen Atlas city page, the St. John's, NL pollen count is refreshed each morning.
Nearby cities
- Cape Breton pollen count (363 miles away)
- Halifax pollen count (556 miles away)
- Moncton pollen count (579 miles away)
- Saint John pollen count (653 miles away)
- Fredericton pollen count (667 miles away)
- Eastport pollen count (705 miles away)
From Pollen Atlas News
See how St. John's 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).