Ragweed Pollen Count in St. Mary, MT — Today

Pollen by type in St. Mary

• St. Mary tree pollen count
• St. Mary grass pollen count
• St. Mary pollen count

What is the ragweed pollen count in St. Mary today?

The St. Mary ragweed pollen index today is 0.6 (Low) on Pollen Atlas’s modelled 0–100 scale. Low

Modelled pollen risk index — not a measured count.

St. Mary’s overall pollen count today is 24 (Low) across all types. See the full St. Mary pollen count for the overall index and every type together.

St. Mary Ragweed Pollen Count: 5-Day Forecast

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 St. Mary’s overall trend across the week. Today’s ragweed pollen reading is the headline above.

Species driving St. Mary’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 0.6 (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 St. Mary now — ragweed pollen

Detailed plant-by-plant readings for the ragweed pollen category were not returned in today’s source data for St. Mary. The type summary stands: ragweed 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 ragweed pollen level means

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

Enjoy outdoor activities.

Ragweed, sagebrush, wormwood and pigweed run from August until the first hard frost, typically in October. This month sits outside the usual ragweed pollen window for the Northern Rockies pattern, so today’s ragweed 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.

St. Mary allergies today

St. Mary allergies today are set by the same reading as the St. Mary pollen count today: the Total Pollen Index is 24 (Low), and the ragweed pollen index on this page is 0.6 (Low) of it. When people ask about St. Mary allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for St. Mary.

Allergies in St. Mary follow the Montana calendar set out on the full St. Mary 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 St. Mary 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 St. Mary allergy forecast for the ragweed pollen season: it shows whether St. Mary 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.