Grass Pollen Count in Thief River Falls, MN — Today

Updated Saturday, November 7, 2026

Pollen by type in Thief River Falls

What is the grass pollen count in Thief River Falls today?

The Thief River Falls grass pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Grass pollen is the dominant allergen in Thief River Falls today. See the full Thief River Falls pollen count for the overall index and every type together.

Thief River Falls Grass Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 75Low
Sunday, November 85Low
Monday, November 95Low
Tuesday, November 105Low
Wednesday, November 115Low

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 Thief River Falls’s overall trend across the week. Today’s grass pollen reading is the headline above.

Species driving Thief River Falls’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 Thief River Falls is 0.6 (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 Minnesota allergy season guide singles out birch, a signature northern spring pollen, and southern-Minnesota ragweed.

Plants affecting Thief River Falls now — grass pollen

Detailed plant-by-plant readings for the grass pollen category were not returned in today’s source data for Thief River Falls. The type summary stands: grass pollen reads 0.6 (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 Minnesota allergy season guide singles out birch, a signature northern spring pollen, and southern-Minnesota ragweed.

Thief River Falls allergies today

Thief River Falls allergies today are set by the same reading as the Thief River Falls pollen count today: the Total Pollen Index is 5 (Low), and the grass pollen index on this page is 0.6 (Low) of it. When people ask about Thief River Falls allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Thief River Falls.

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

Thief River Falls tree pollen count

Thief River Falls ragweed pollen count

See how Thief River Falls ranks in today's pollen count rankings — the worst cities for allergies today

See Thief River Falls on the pollen map

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

Minnesota allergy season guide

Grass pollen season

Find an allergist in Thief River Falls, MN

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).