Ragweed Pollen Count in Romeoville, IL — Today

Pollen by type in Romeoville

• Romeoville tree pollen count
• Romeoville grass pollen count
• Romeoville pollen count

What is the ragweed pollen count in Romeoville today?

The Romeoville ragweed pollen index today is 47 (Moderate) on Pollen Atlas’s modelled 0–100 scale. Moderate

Modelled pollen risk index — not a measured count.

Ragweed pollen is the dominant allergen in Romeoville today. See the full Romeoville pollen count for the overall index and every type together.

Romeoville is a village in Will County, Illinois. Its population is 40,996 (ACS 2023).

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

Species driving Romeoville’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 47 (Moderate) 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 Romeoville now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Romeoville. The type summary stands: ragweed pollen reads 47 (Moderate) 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 ragweed pollen level means

Moderate risk. If you have allergies, consider meds and limit exposure during peak hours.

Keep windows closed at midday; shower after being outside.

Ragweed builds from mid-August, peaks in September, and ends at the first frost. This month sits outside the usual ragweed pollen window for the Midwest & Great Lakes pattern, so today’s ragweed 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.

Romeoville allergies today

Romeoville allergies today are set by the same reading as the Romeoville pollen count today: the Total Pollen Index is 36 (Low), and the ragweed pollen index on this page is 47 (Moderate) of it. When people ask about Romeoville allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Romeoville.

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