Laval, QC Pollen Count
Laval, QC · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Laval — 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).
Laval, QC
Weeds Index
How active weeds pollen is today (0–100).
Laval, QC
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Laval Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Laval residents check each morning
The Laval pollen count today is 36 (Low). The main driver is Ragweed, with weed pollen at 47 today. Weed pollen leads the split at 47 (Moderate on its own scale), followed by tree pollen at 0.6 and grass 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 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 Laval page.
Fall is ragweed season across most of North America: 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 Laval pollen forecast below — it is currently mixed, with Friday the highest day in the window.
This is the pollen count Laval residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Laval pollen count today?
The Laval pollen count today is 36 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Laval: this page is updated every morning with the day’s modelled reading.
Laval allergies today
Laval allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 36 (Low), driven mainly by Ragweed. When people ask about Laval allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Laval.
Allergies in Laval follow the Quebec 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 Laval 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 Laval allergy forecast: today reads 36 (Low), and the day-by-day outlook shows whether Laval 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 Laval today records is this same combined reading — tree, grass, weed and mold in one index.
The Laval allergy count today is 36 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Laval: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 36 | Moderate |
| Saturday, November 7 | 16 | Low |
| Sunday, November 8 | 16 | Low |
| Monday, November 9 | 25 | Low |
| Tuesday, November 10 | 16 | Low |
Pollen Atlas forecasts Laval’s pollen count to peak on Friday at 36 (Moderate) over the next 5 days.
Pollen by type in Laval
What is driving Laval’s pollen today
The shape of today’s 36 (Low) is set by weed pollen at 47 (Moderate on its own scale) — about 98% of the four category readings added together, 46.4 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 Quebec 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 Laval, 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 16 to 36, changing band 1 time. Today’s 36 sits 14 points above the window’s average of 21.8 — a moving window, worth reading day by day rather than from the average.
Plants affecting Laval now
Detailed plant-by-plant readings for Laval 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 47 (Moderate).
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.
Laval pollen through the year
Three chapters make the Quebec pollen year, and Laval 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.
No Quebec allergy season guide is published yet, so this page does not single out signature pollens for Laval — the calendar above is the Northeast regional pattern, and the plant detail on this page names what today’s feed actually records.
November falls between the main chapters of the Quebec 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 Quebec year, March to October — a compressed season, which is why its chapters arrive in quick succession. No Quebec allergy season guide is published yet — this calendar follows the Northeast regional pattern. See Laval pollen count rankings and Laval on the pollen heatmap.
How to read this index
Pollen Atlas reports the Laval 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 Laval, QC 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.
Laval in today’s US & Canada picture
At 36 (Low), Laval ranks joint 6835th 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 Laval: Montréal, QC (7 miles away) reads 41 (Moderate); Blainville, QC (9 miles away) reads 5 (Low); Terrebonne, QC (10 miles away) reads 5 (Low). Laval reads 5 points lower than its nearest tracked neighbour today. Across Quebec’s 21 tracked cities, today runs from 5 in Quebec City to 41 in Montréal.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Laval resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Laval, QC 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.
Laval in its local area
Laval is in Laval, Quebec, Canada. Its population is 438,366 (GeoNames).
Across Quebec’s 21 tracked cities, Laval ranks 2nd today.
Like every Pollen Atlas city page, the Laval, QC pollen count is refreshed each morning.
Nearby cities
- Montréal pollen count (7 miles away)
- Blainville pollen count (9 miles away)
- Terrebonne pollen count (10 miles away)
- Mascouche pollen count (13 miles away)
- Mirabel pollen count (14 miles away)
- Longueuil pollen count (15 miles away)
From Pollen Atlas News
See how Laval 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).