Ragweed Pollen Count in Marchais, France
Last updated Sunday, November 8, 2026
This page shows the most recent reading available for Marchais — from Sunday, November 8, 2026 (1 day ago) — not today's reading.
This reading is the forecast point shared with Liesse-Notre-Dame, France — 6 nearby places use the same point; Marchais is 3.9 km from it.
Pollen by type in Marchais
What is the ragweed pollen count in Marchais today?
The Marchais ragweed pollen index today is 10 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Ragweed pollen is the dominant allergen in Marchais today. See the full Marchais pollen count for the overall index and every type together.
Marchais is in Aisne, Hauts-de-France, France. Its population is 385 (GeoNames).
Marchais Ragweed Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Sunday, November 8 | 13 | Low |
| Monday, November 9 | 13 | Low |
| Tuesday, November 10 | 8 | Low |
| Wednesday, November 11 | 5 | Low |
| Thursday, November 12 | 12 | Low |
Pollen Atlas models the daily detail as an overall index: day-by-day splits by individual pollen type are not part of the modelled data, so this table shows Marchais’s overall trend across the week. Today’s ragweed pollen reading is the headline above.
Species driving Marchais’s ragweed pollen
Species-level counts are not part of the modelled data Pollen Atlas publishes — the modelled index is reported per pollen type, not per species — so this section gives the type summary: ragweed pollen reads 10 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.
How to read this: the “ragweed” figure on this site is the modelled weed pollen index — the weed group (ragweed + mugwort) — printed under the ragweed name the rankings use.
Plants affecting Marchais now — ragweed pollen
Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Marchais. The type summary stands: ragweed pollen reads 10 (Low) today.
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’s readings.
Plant detail returns here automatically on any day the feed includes it.
What this ragweed pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Mugwort and ragweed build from August, peak in September, and are ended by the first hard frost. This month sits outside the usual ragweed pollen window for the Continental West pattern, so today’s ragweed pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. No France allergy season guide is published yet, so the seasonal context here follows the Continental West regional pattern.
Marchais allergies today
Marchais allergies today are set by the same reading as the Marchais pollen count today: the Total Pollen Index is 13 (Low), and the ragweed pollen index on this page is 10 (Low) of it. When people ask about Marchais allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Marchais.
Allergies in Marchais follow the France calendar set out on the full Marchais page — the chapters, the plants behind them, and the 5-day forecast show whether today is typical for the season or an exception to it. If you are checking allergies today in Marchais before heading outdoors, the ragweed pollen split on this page is the part to read: it shows whether this pollen type is doing the work today, not just how high the total sits.
Read the five-day overall trend above as the Marchais allergy forecast for the ragweed pollen season: it shows whether Marchais allergies are set to ease or build across the week, day by day — the days to plan outdoor time around are the ones where the overall index steps down, not just today.
See the full Marchais pollen count — all types, the overall index and today’s ranking context
See how Marchais ranks in today's pollen count rankings — the worst cities for allergies today
See Marchais on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).