Tree Pollen Count in Dundas, IL

Last updated Friday, November 6, 2026

This page shows the most recent reading available for Dundas — from Friday, November 6, 2026 (1 day ago) — not today's reading.

Pollen by type in Dundas

What is the tree pollen count in Dundas today?

The Dundas 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.

Dundas’s overall pollen count today is 27 (Low) across all types. See the full Dundas pollen count for the overall index and every type together.

Dundas Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 627Low
Saturday, November 726Low
Sunday, November 826Low
Monday, November 926Low
Tuesday, November 1026Low

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

Species driving Dundas’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 Dundas now — tree pollen

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

In the Midwest & Great Lakes pattern, the plants that typically shape this city’s year are spring trees, late-spring and summer grasses, and late-summer and autumn 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.

Trees run from March into May, later near the big lakes. This month sits outside the usual tree pollen window for the Midwest & Great Lakes pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Illinois allergy season guide singles out the classic tree, grass and ragweed sequence at full strength, with mold as a Chicago co-headliner.

Dundas allergies today

Dundas allergies today are set by the same reading as the Dundas pollen count today: the Total Pollen Index is 27 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Dundas allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Dundas.

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

Dundas grass pollen count

Dundas ragweed pollen count

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

See Dundas on the pollen map

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

Illinois allergy season guide

Tree pollen season

Find an allergist in Dundas, IL

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).