Ragweed Pollen Count in Union Hill, IL — Today

Updated Saturday, November 7, 2026

Pollen by type in Union Hill

What is the ragweed pollen count in Union Hill today?

The Union Hill ragweed pollen index today is 37 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

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

Union Hill Ragweed Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 728Low
Sunday, November 828Low
Monday, November 928Low
Tuesday, November 1028Low
Wednesday, November 1128Low

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

Species driving Union Hill’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 37 (Low) 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 Union Hill now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for Union Hill. The type summary stands: ragweed pollen reads 37 (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 ragweed pollen level means

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

Enjoy outdoor activities.

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.

Union Hill allergies today

Union Hill allergies today are set by the same reading as the Union Hill pollen count today: the Total Pollen Index is 28 (Low), and the ragweed pollen index on this page is 37 (Low) of it. When people ask about Union Hill allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Union Hill.

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

Union Hill tree pollen count

Union Hill grass pollen count

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

See Union Hill on the pollen map

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

Illinois allergy season guide

Ragweed season

Find an allergist in Union Hill, 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).