Bozeman Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Bozeman is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (cladosporium) remains low, mold (alternaria) no longer expected.
7-Day Trend
Over the next week mugwort, ragweed, mold (alternaria), and mold (cladosporium) will increase; grass will remain stable.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | None | 0/100 |
| Mold (Alternaria) | Low | 6/100 |
| Mold (Cladosporium) | Low | 14/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | — |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | None | 0/100 | |
| Mold (Alternaria) | None | 0/100 | |
| Mold (Cladosporium) | Low | 1/100 |
Local Environmental Conditions
Most of the area around the center of Bozeman is built-up land, with some woodland and open grassland. Close to the Gallatin River, riverside trees such as willow and poplar add to local tree pollen. Of the trees nearby, poplar, maple and willow are the ones that matter most for allergies. Grass pollen is significant here, and mugwort contributes weed pollen.
Tree pollen peaks in mid-spring, when poplar, maple and willow are in full flower. Grasses take over in early summer and keep pollen in the air into late summer. Mugwort brings a final peak from midsummer into early fall. Rain is heaviest in spring, often giving short breaks from high pollen levels. By mid-fall, as temperatures fall to around 5°C, pollen levels are low again.
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Resource Hub
Pollen forecast neighborhoods 1 neighborhood
Sports venues in Bozeman 1 sports venue
Frequently Asked Questions About Pollen in Montana
Is pollen high in Bozeman right now?
Currently, there is no significant pollen in Bozeman.
Will pollen levels change in Bozeman tomorrow?
On 11 October 2026, pollen conditions in Bozeman will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Bozeman this week?
According to the five-day outlook, ambrosia and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Bozeman?
On 10 October 2026, there are no significant pollen types in Bozeman.
When is pollen season in Bozeman?
How often is the Bozeman pollen forecast updated?
The Bozeman pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Bozeman come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Bozeman based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Bozeman, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Understanding the Scale
The 0–100 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
