Grass Pollen Count in Old Monroe, MO

Last updated Friday, November 6, 2026

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

Pollen by type in Old Monroe

What is the grass pollen count in Old Monroe today?

The Old Monroe grass pollen index today is 2 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Old Monroe’s overall pollen count today is 29 (Low) across all types. See the full Old Monroe pollen count for the overall index and every type together.

Old Monroe Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Friday, November 629Low
Saturday, November 729Low
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 Old Monroe’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Old Monroe’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 Old Monroe is 2 (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 South-Central Plains pattern, the plants that typically shape this city’s year are spring trees, prairie grasses and late-summer ragweed.

The Missouri allergy season guide singles out oak and hickory over an elm and maple opening, in a season written by the state’s rivers.

Plants affecting Old Monroe now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Old Monroe. The type summary stands: grass pollen reads 2 (Low) today.

In the South-Central Plains pattern, the plants that typically shape this city’s year are spring trees, prairie grasses and late-summer 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.

Prairie grasses take over in late May and hold the summer. This month sits outside the usual grass pollen window for the South-Central Plains pattern, so today’s grass pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Missouri allergy season guide singles out oak and hickory over an elm and maple opening, in a season written by the state’s rivers.

Old Monroe allergies today

Old Monroe allergies today are set by the same reading as the Old Monroe pollen count today: the Total Pollen Index is 29 (Low), and the grass pollen index on this page is 2 (Low) of it. When people ask about Old Monroe allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Old Monroe.

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

Old Monroe tree pollen count

Old Monroe ragweed pollen count

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

See Old Monroe on the pollen map

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

Missouri allergy season guide

Grass pollen season

Find an allergist in Old Monroe, MO

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).