Tree Pollen Count in Butte-Silver Bow, MT
Last updated Friday, November 6, 2026
This page shows the most recent reading available for Butte-Silver Bow — from Friday, November 6, 2026 (1 day ago) — not today's reading.
Pollen by type in Butte-Silver Bow
What is the tree pollen count in Butte-Silver Bow today?
The Butte-Silver Bow 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.
Butte-Silver Bow’s overall pollen count today is 15 (Low) across all types. See the full Butte-Silver Bow pollen count for the overall index and every type together.
Butte-Silver Bow is in Silver Bow County, Montana. Its population is 34,929 (ACS 2023).
Butte-Silver Bow Tree Pollen Count: 5-Day Forecast
| Day | Overall index | Category |
|---|---|---|
| Friday, November 6 | 15 | Low |
| Saturday, November 7 | 15 | Low |
| Sunday, November 8 | 15 | Low |
| Monday, November 9 | 15 | Low |
| Tuesday, November 10 | 15 | Low |
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 Butte-Silver Bow’s overall trend across the week. Today’s tree pollen reading is the headline above.
Species driving Butte-Silver Bow’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 Butte-Silver Bow now — tree pollen
Detailed plant-by-plant readings for the tree pollen category were not returned in today’s source data for Butte-Silver Bow. 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.
Butte-Silver Bow allergies today
Butte-Silver Bow allergies today are set by the same reading as the Butte-Silver Bow pollen count today: the Total Pollen Index is 15 (Low), and the tree pollen index on this page is 0.6 (Low) of it. When people ask about Butte-Silver Bow allergies, this is the number that answers them — one daily modelled index built from today’s tree, grass and weed index values for Butte-Silver Bow.
Allergies in Butte-Silver Bow follow the Montana calendar set out on the full Butte-Silver Bow 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 Butte-Silver Bow 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 Butte-Silver Bow allergy forecast for the tree pollen season: it shows whether Butte-Silver Bow 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.
Butte-Silver Bow grass pollen count
Butte-Silver Bow ragweed pollen count
See Butte-Silver Bow on the pollen map
Every pollen type, with photos and seasons: the pollen directory
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).