Tree Pollen Count in Wentzville, MO — Today

Updated Saturday, November 7, 2026

This reading is the forecast point shared with O'Fallon, MO — 3 nearby places use the same point; Wentzville is 13 km from it.

Pollen by type in Wentzville

What is the tree pollen count in Wentzville today?

The Wentzville tree pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Wentzville’s overall pollen count today is 19 (Low) across all types. See the full Wentzville pollen count for the overall index and every type together.

Wentzville is a city in St. Charles County, Missouri. Its population is 45,734 (ACS 2023).

Wentzville Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 719Low
Sunday, November 820Low
Monday, November 920Low
Tuesday, November 1020Low
Wednesday, November 1120Low

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 Wentzville’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Wentzville’s tree 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: tree pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Wentzville now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Wentzville. The type summary stands: tree pollen reads 0.6 (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 tree pollen level means

Low risk. Keep windows open; consider allergy meds only if sensitive.

Enjoy outdoor activities.

River-corridor trees open from February — elm and maple first, then oak and hickory. This month sits outside the usual tree pollen window for the South-Central Plains pattern, so today’s tree 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.

Wentzville allergies today

Wentzville allergies today are set by the same reading as the Wentzville pollen count today: the Total Pollen Index is 19 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Wentzville allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Wentzville.

Allergies in Wentzville follow the Missouri calendar set out on the full Wentzville 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 Wentzville before heading outdoors, the tree 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 Wentzville allergy forecast for the tree pollen season: it shows whether Wentzville 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 Wentzville pollen count — all types, the overall index and today’s ranking context

Wentzville grass pollen count

Wentzville ragweed pollen count

See how Wentzville ranks in today's pollen count rankings — the worst cities for allergies today

See Wentzville on the pollen map

Every pollen type, with photos and seasons: the pollen directory

Missouri allergy season guide

Tree pollen season

Find an allergist in Wentzville, MO

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).