Grass Pollen Count in Lisbon, IL

Last updated Friday, November 6, 2026

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

Pollen by type in Lisbon

What is the grass pollen count in Lisbon today?

The Lisbon grass pollen index today is 1 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Lisbon’s overall pollen count today is 28 (Low) across all types. See the full Lisbon pollen count for the overall index and every type together.

Lisbon Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 628Low
Saturday, November 728Low
Sunday, November 828Low
Monday, November 928Low
Tuesday, November 1028Low

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 Lisbon’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Lisbon’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 Lisbon is 1 (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 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.

The Illinois allergy season guide singles out the classic tree, grass and ragweed sequence at full strength, with mold as a Chicago co-headliner.

Plants affecting Lisbon now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Lisbon. The type summary stands: grass pollen reads 1 (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 grass pollen level means

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

Enjoy outdoor activities.

Grasses hold from May through July. This month sits outside the usual grass pollen window for the Midwest & Great Lakes pattern, so today’s grass 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.

Lisbon allergies today

Lisbon allergies today are set by the same reading as the Lisbon pollen count today: the Total Pollen Index is 28 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Lisbon allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Lisbon.

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

Lisbon tree pollen count

Lisbon ragweed pollen count

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

See Lisbon on the pollen map

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

Illinois allergy season guide

Grass pollen season

Find an allergist in Lisbon, 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).