Grass Pollen Count in Arlington Heights, IL — Today

Pollen by type in Arlington Heights

• Arlington Heights tree pollen count
• Arlington Heights ragweed pollen count
• Arlington Heights pollen count

What is the grass pollen count in Arlington Heights today?

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

Modelled pollen risk index — not a measured count.

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

Arlington Heights is a village in Cook County, Illinois. Its population is 76,220 (ACS 2023).

Arlington Heights Grass 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 Arlington Heights’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Arlington Heights’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 Arlington Heights 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 Arlington Heights now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Arlington Heights. 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.

Arlington Heights allergies today

Arlington Heights allergies today are set by the same reading as the Arlington Heights 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 Arlington Heights allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Arlington Heights.

Allergies in Arlington Heights follow the Illinois calendar set out on the full Arlington 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 Arlington Heights 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 Arlington Heights allergy forecast for the grass pollen season: it shows whether Arlington 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.