Tree Pollen Count in Helena Flats, MT — Today

Updated Saturday, November 7, 2026

Pollen by type in Helena Flats

What is the tree pollen count in Helena Flats today?

The Helena Flats tree pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

Helena Flats’s overall pollen count today is 8 (Low) across all types. See the full Helena Flats pollen count for the overall index and every type together.

Helena Flats Tree Pollen Count: 5-Day Forecast

DayOverall indexCategory
Saturday, November 78Low
Sunday, November 88Low
Monday, November 98Low
Tuesday, November 106Low
Wednesday, November 118Low

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 Helena Flats’s overall trend across the week. Today’s tree pollen reading is the headline above.

Species driving Helena Flats’s tree 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: tree pollen reads 0.6 (Low) today. The plant-by-plant detail that is available, from the Google Pollen API, is in the next section.

Plants affecting Helena Flats now — tree pollen

Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Helena Flats. The type summary stands: tree pollen reads 0.6 (Low) today.

In the Northern Rockies pattern, the plants that typically shape this city’s year are river-corridor trees, a June grass crest of timothy, orchard grass, bluegrass and ryegrass, and a late sagebrush finish — 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 tree pollen level means

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

Enjoy outdoor activities.

River-corridor trees open in late March or April, varying by valley elevation, and run into May. This month sits outside the usual tree pollen window for the Northern Rockies pattern, so today’s tree pollen reading is the modelled value outranking the calendar — this page reports the modelled reading first. The Montana allergy season guide singles out sagebrush, flowering late on the dry benches, over a grass summer of timothy, orchard grass, bluegrass and ryegrass.

Helena Flats allergies today

Helena Flats allergies today are set by the same reading as the Helena Flats pollen count today: the Total Pollen Index is 8 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Helena Flats allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Helena Flats.

Allergies in Helena Flats follow the Montana calendar set out on the full Helena Flats 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 Helena Flats before heading outdoors, the tree 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 Helena Flats allergy forecast for the tree pollen season: it shows whether Helena Flats 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 Helena Flats pollen count — all types, the overall index and today’s ranking context

Helena Flats grass pollen count

Helena Flats ragweed pollen count

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

See Helena Flats on the pollen map

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

Montana allergy season guide

Tree pollen season

Find an allergist in Helena Flats, MT

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).