Grass Pollen Count in Iowa City, IA — Today

Updated Saturday, November 7, 2026

Pollen by type in Iowa City

What is the grass pollen count in Iowa City today?

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

Modelled pollen risk index — not a measured count.

Iowa City’s overall pollen count today is 21 (Low) across all types. See the full Iowa City pollen count for the overall index and every type together.

Iowa City is a city in Johnson County, Iowa. Its population is 75,264 (ACS 2023).

Iowa City Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 721Low
Sunday, November 821Low
Monday, November 921Low
Tuesday, November 1020Low
Wednesday, November 1120Low

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

Species driving Iowa City’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 Iowa City 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 Iowa allergy season guide singles out ragweed, the state’s dominant allergen, over a maple, oak and hickory spring.

Plants affecting Iowa City now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Iowa City. 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 Iowa allergy season guide singles out ragweed, the state’s dominant allergen, over a maple, oak and hickory spring.

Iowa City allergies today

Iowa City allergies today are set by the same reading as the Iowa City pollen count today: the Total Pollen Index is 21 (Low), and the grass pollen index on this page is 1 (Low) of it. When people ask about Iowa City allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Iowa City.

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

Iowa City tree pollen count

Iowa City ragweed pollen count

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

See Iowa City on the pollen map

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

Iowa allergy season guide

Grass pollen season

Find an allergist in Iowa City, IA

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).