Chevreuse Pollen Count
Chevreuse, France · Last updated Friday, November 6, 2026
This page shows the most recent reading available for Chevreuse — 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).
Chevreuse, France
Weeds Index
How active weeds pollen is today (0–100).
Chevreuse, France
Pollen Types
Pick a pollen subtype to update the species forecast
5-Day Chevreuse Overall Pollen Forecast
Bars are colored by severity (Low/Moderate/High).
Pollen count Chevreuse residents check each morning
The Chevreuse pollen count today is 39 (Low). The main driver is Ragweed, with weed pollen at 46 today. The full split is tree pollen 33, grass pollen 0.6, weed pollen 46. The sections below break that headline number down by plant, by day and by what the band means in practice. 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 Chevreuse 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 Chevreuse pollen forecast below — it is currently mixed, with Monday the highest day in the window.
This is the pollen count Chevreuse residents check each morning, built from the day’s tree, grass, weed and mold readings.
What is the Chevreuse pollen count today?
The Chevreuse pollen count today is 39 out of 100 (Low) on the Pollen Atlas Total Pollen Index, driven mainly by Ragweed.
Short answer for anyone searching pollen count today Chevreuse: this page is updated every morning with the day’s modelled reading.
Chevreuse allergies today
Chevreuse allergies today are set by the same reading as the pollen count above: the Total Pollen Index is 39 (Low), driven mainly by Ragweed. When people ask about Chevreuse allergies, this is the number that answers them — one daily index built from today’s tree, grass, weed and mold readings for Chevreuse.
Allergies in Chevreuse follow the France 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 Chevreuse 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 Chevreuse allergy forecast: today reads 39 (Low), and the day-by-day outlook shows whether Chevreuse 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 Chevreuse today records is this same combined reading — tree, grass, weed and mold in one index.
The Chevreuse allergy count today is 39 (Low) — the same Total Pollen Index as the pollen count above, in one combined reading.
Pollen count today Chevreuse: the 5-day forecast
| Day | Total Pollen Index | Band |
|---|---|---|
| Friday, November 6 | 39 | Moderate |
| Saturday, November 7 | 39 | Moderate |
| Sunday, November 8 | 39 | Moderate |
| Monday, November 9 | 42 | Moderate |
| Tuesday, November 10 | 18 | Low |
Pollen Atlas forecasts Chevreuse’s pollen count to peak on Monday at 42 (Moderate) over the next 5 days.
Pollen by type in Chevreuse
What is driving Chevreuse’s pollen today
The shape of today’s 39 (Low) is set by weed pollen at 46 (Moderate on its own scale) — about 58% of the four category readings added together, 13 points clear of the next category, tree pollen at 33. 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 France 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 Chevreuse, 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 18 to 42, changing band 1 time. Today’s 39 sits 4 points above the window’s average of 35.4 — a moving window, worth reading day by day rather than from the average.
Plants affecting Chevreuse now
Detailed plant-by-plant readings for Chevreuse 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 33 (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 46 (Moderate).
In the Continental West pattern, the plants that typically shape this city’s year are early hazel and alder, a birch-led spring, late-spring grasses, and late-summer mugwort and 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.
Chevreuse pollen through the year
The Chevreuse pollen year runs in chapters, set by the Continental West pattern and the France calendar. Trees come first: hazel and alder open from February, and birch leads the spring peak through April and into May. Grasses take the middle of the year: grasses hold from May through July, cresting in late May and June. Weeds close it out: mugwort and ragweed build from August, peak in September, and are ended by the first hard frost. Mold builds through the humid summer and fills the gaps between chapters.
No France allergy season guide is published yet, so this page does not single out signature pollens for Chevreuse — the calendar above is the Continental West regional pattern, and the plant detail on this page names what today’s feed actually records.
November falls between the main chapters of the France 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 9 months of the France year, February to October — leaving a quiet gap of roughly 3 months in the depth of the off-season. No France allergy season guide is published yet — this calendar follows the Continental West regional pattern. See Chevreuse pollen count rankings and Chevreuse on the pollen heatmap.
How to read this index
Pollen Atlas reports the Chevreuse 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 Chevreuse, France 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.
Chevreuse in today’s national picture
At 39 (Low), Chevreuse ranks joint 3489th of the 90896 cities Pollen Atlas tracks today — in the middle of the national table. The highest reading in the country 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 Chevreuse: Saint-Rémy-lès-Chevreuse, France (3 km away) reads 36 (Low); Dampierre-en-Yvelines, France (4 km away) reads 39 (Low); Les Molières, France (5 km away) reads 36 (Low). Chevreuse reads 3 points higher than its nearest tracked neighbour today. Across France’s 8633 tracked cities, today runs from 5 in Saint-Étienne to 52 in Cervera de la Marenda.
Pollen totals are population numbers; symptoms are personal. The same reading can leave one Chevreuse resident untouched and floor another, depending on which pollens they are sensitised to. If this pattern finds you every season, allergists in Chevreuse, France 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.
Chevreuse in its local area
Chevreuse is in Yvelines, Île-de-France, France. Its population is 5,687 (GeoNames).
Across France’s 8633 tracked cities, Chevreuse ranks joint 1068th today.
Like every Pollen Atlas city page, the Chevreuse, France pollen count is refreshed each morning.
Nearby cities
- Saint-Rémy-lès-Chevreuse pollen count (3 km away)
- Dampierre-en-Yvelines pollen count (4 km away)
- Les Molières pollen count (5 km away)
- Magny-les-Hameaux pollen count (5 km away)
- Châteaufort pollen count (5 km away)
- Cernay-la-Ville pollen count (6 km away)
From Pollen Atlas News
See how Chevreuse 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).