Ragweed Pollen Count in St. Clair, MO

Pollen by type in St. Clair

• St. Clair tree pollen count
• St. Clair grass pollen count
• St. Clair pollen count

What is the ragweed pollen count in St. Clair today?

The St. Clair ragweed pollen index today is 21 (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 St. Clair today. See the full St. Clair pollen count for the overall index and every type together.

St. Clair Ragweed Pollen Count: 5-Day Forecast

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 St. Clair’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving St. Clair’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 21 (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 St. Clair now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for St. Clair. The type summary stands: ragweed pollen reads 21 (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.

St. Clair allergies today

St. Clair allergies today are set by the same reading as the St. Clair pollen count today: the Total Pollen Index is 16 (Low), and the ragweed pollen index on this page is 21 (Low) of it. When people ask about St. Clair allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for St. Clair.

Allergies in St. Clair follow the Missouri calendar set out on the full St. Clair 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 St. Clair 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 St. Clair allergy forecast for the ragweed pollen season: it shows whether St. Clair 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.