Ragweed Pollen Count in Kasterlee, Belgium — Today
Updated Saturday, November 7, 2026
Pollen by type in Kasterlee
What is the ragweed pollen count in Kasterlee today?
The Kasterlee ragweed pollen index today is 31 (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 Kasterlee today. See the full Kasterlee pollen count for the overall index and every type together.
Kasterlee is in Provincie Antwerpen, Flanders, Belgium. Its population is 17,765 (GeoNames).
Kasterlee Ragweed Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 25 | Low |
| Sunday, November 8 | 38 | Low |
| Monday, November 9 | 37 | Low |
| Tuesday, November 10 | 40 | Low |
| Wednesday, November 11 | 26 | 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 Kasterlee’s overall trend across the week. Today’s ragweed pollen reading is the headline above.
Species driving Kasterlee’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 31 (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 Kasterlee now — ragweed pollen
Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Kasterlee. The type summary stands: ragweed pollen reads 31 (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 Belgium allergy season guide is published yet, so the seasonal context here follows the Continental West regional pattern.
Kasterlee allergies today
Kasterlee allergies today are set by the same reading as the Kasterlee pollen count today: the Total Pollen Index is 25 (Low), and the ragweed pollen index on this page is 31 (Low) of it. When people ask about Kasterlee allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Kasterlee.
Allergies in Kasterlee follow the Belgium calendar set out on the full Kasterlee 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 Kasterlee 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 Kasterlee allergy forecast for the ragweed pollen season: it shows whether Kasterlee 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 Kasterlee pollen count — all types, the overall index and today’s ranking context
See how Kasterlee ranks in today's pollen count rankings — the worst cities for allergies today
See Kasterlee 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).