Grass Pollen Count in Herenthout, Belgium — Today
Updated Saturday, November 7, 2026
Pollen by type in Herenthout
What is the grass pollen count in Herenthout today?
The Herenthout grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Herenthout’s overall pollen count today is 27 (Low) across all types. See the full Herenthout pollen count for the overall index and every type together.
Herenthout is in Provincie Antwerpen, Flanders, Belgium. Its population is 3,942 (GeoNames).
Herenthout Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 27 | Low |
| Sunday, November 8 | 44 | Moderate |
| Monday, November 9 | 39 | Low |
| Tuesday, November 10 | 42 | Moderate |
| Wednesday, November 11 | 28 | 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 Herenthout’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving Herenthout’s grass pollen
The modelled data reports grass as one combined index — there is no species-by-species split for grass anywhere in the data, so this page does not invent one. Today’s modelled grass index for Herenthout is 0.6 (Low), and the 5-day overall trend above shows the shape of the week.
As regional context only — not as today’s readings — 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.
Plants affecting Herenthout now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Herenthout. The type summary stands: grass pollen reads 0.6 (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 grass pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Grasses hold from May through July, cresting in late May and June. This month sits outside the usual grass pollen window for the Continental West pattern, so today’s grass 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.
Herenthout allergies today
Herenthout allergies today are set by the same reading as the Herenthout pollen count today: the Total Pollen Index is 27 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Herenthout allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Herenthout.
Allergies in Herenthout follow the Belgium calendar set out on the full Herenthout 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 Herenthout before heading outdoors, the grass 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 Herenthout allergy forecast for the grass pollen season: it shows whether Herenthout 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 Herenthout pollen count — all types, the overall index and today’s ranking context
Herenthout ragweed pollen count
See how Herenthout ranks in today's pollen count rankings — the worst cities for allergies today
See Herenthout 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).