Ragweed Pollen Count in Maryland Heights, MO — Today
Updated Saturday, November 7, 2026
This reading is the forecast point for Maryland Heights — 10 nearby places use the same point; Maryland Heights is 2.2 km from it.
Pollen by type in Maryland Heights
What is the ragweed pollen count in Maryland Heights today?
The Maryland Heights ragweed pollen index today is 30 (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 Maryland Heights today. See the full Maryland Heights pollen count for the overall index and every type together.
Maryland Heights is a city in St. Louis County, Missouri. Its population is 27,981 (ACS 2023).
Maryland Heights Ragweed Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Saturday, November 7 | 23 | Low |
| Sunday, November 8 | 23 | Low |
| Monday, November 9 | 23 | Low |
| Tuesday, November 10 | 23 | Low |
| Wednesday, November 11 | 22 | 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 Maryland Heights’s overall trend across the week. Today’s ragweed pollen reading is the headline above.
Species driving Maryland Heights’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 30 (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 Maryland Heights now — ragweed pollen
Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Maryland Heights. The type summary stands: ragweed pollen reads 30 (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 ragweed pollen level means
Low risk. Keep windows open; consider allergy meds only if sensitive.
Enjoy outdoor activities.
Ragweed builds from mid-August to the first hard frost, carried county to county by plains wind. This month sits outside the usual ragweed pollen window for the South-Central Plains pattern, so today’s ragweed 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.
Maryland Heights allergies today
Maryland Heights allergies today are set by the same reading as the Maryland Heights pollen count today: the Total Pollen Index is 23 (Low), and the ragweed pollen index on this page is 30 (Low) of it. When people ask about Maryland Heights allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Maryland Heights.
Allergies in Maryland Heights follow the Missouri calendar set out on the full Maryland Heights 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 Maryland Heights 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 Maryland Heights allergy forecast for the ragweed pollen season: it shows whether Maryland Heights 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.
Maryland Heights tree pollen count
Maryland Heights grass pollen count
See Maryland Heights 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).