Grass Pollen Count in Foristell, MO
Last updated Friday, November 6, 2026
This page shows the most recent reading available for Foristell — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen by type in Foristell
What is the grass pollen count in Foristell today?
The Foristell grass pollen index today is 2 (Low) on Pollen Atlas’s modelled 0–100 scale. Low
Modelled pollen risk index — not a measured count.
Foristell’s overall pollen count today is 20 (Low) across all types. See the full Foristell pollen count for the overall index and every type together.
Foristell Grass Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 20 | Low |
| Saturday, November 7 | 19 | Low |
| Sunday, November 8 | 20 | Low |
| Monday, November 9 | 20 | Low |
| Tuesday, November 10 | 20 | 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 Foristell’s overall trend across the week. Today’s grass pollen reading is the headline above.
Species driving Foristell’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 Foristell is 2 (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 South-Central Plains pattern, the plants that typically shape this city’s year are spring trees, prairie grasses and late-summer ragweed.
The Missouri allergy season guide singles out oak and hickory over an elm and maple opening, in a season written by the state’s rivers.
Plants affecting Foristell now — grass pollen
Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Foristell. The type summary stands: grass pollen reads 2 (Low) today.
In the South-Central Plains pattern, the plants that typically shape this city’s year are spring trees, prairie grasses and late-summer 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.
Prairie grasses take over in late May and hold the summer. This month sits outside the usual grass pollen window for the South-Central Plains pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Missouri allergy season guide singles out oak and hickory over an elm and maple opening, in a season written by the state’s rivers.
Foristell allergies today
Foristell allergies today are set by the same reading as the Foristell pollen count today: the Total Pollen Index is 20 (Low), and the grass pollen index on this page is 2 (Low) of it. When people ask about Foristell allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Foristell.
Allergies in Foristell follow the Missouri calendar set out on the full Foristell 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 Foristell 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 Foristell allergy forecast for the grass pollen season: it shows whether Foristell 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 Foristell pollen count — all types, the overall index and today’s ranking context
Foristell ragweed pollen count
See how Foristell ranks in today's pollen count rankings — the worst cities for allergies today
See Foristell 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).