Bozeman pollen forecast — The Club at Spanish Peaks – Championship Course neighborhood
Pollen Today
Today (20 September) pollen in The Club at Spanish Peaks – Championship Course, Bozeman is moderate; ragweed is moderate; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort remains low, ragweed increasing.
7-Day Trend
Over the next week mugwort and ragweed will decrease; grass will remain stable.
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Pollen Risk
Today - 20 September
| 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) | Low | 11/100 |
| Ragweed (Ambrosia) | Moderate | 40/100 |
Tomorrow - 21 September
| 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) | Low | 22/100 | |
| Ragweed (Ambrosia) | High | 51/100 |
Local Environmental Conditions
The Club at Spanish Peaks' Montana Big Sky mountain setting features lodgepole pine, Engelmann spruce, and native mountain grasses as the main pollen sources across the high elevation course, with exposure varying between the forested sections and the open mountain meadow fairways. The elevated Rocky Mountain setting means a more compressed season than in lower elevation courses, while surrounding Montana mountain woodland contributes substantial conifer pollen and mugwort extends exposure into September.
Like the rest of Bozeman, The Club at Spanish Peaks – Championship Course experiences a season that opens with juniper and cottonwood from March before ash peaks during April. Grass follows, peaking through May and June, while sagebrush and ragweed extend the season into September. The dry mountain climate offers fewer rain breaks than more humid parts of the country, a pattern felt across this part of Bozeman.
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Frequently Asked Questions About Pollen in Montana
Is pollen high in Bozeman right now?
On 20 September 2026, overall pollen levels in Bozeman are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels
Will pollen levels change in Bozeman tomorrow?
On 21 September 2026, pollen conditions in Bozeman will be different from today, with artemisia at low levels and ambrosia increasing
Is pollen expected to decrease in Bozeman this week?
According to the five-day outlook, artemisia and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Bozeman?
On 20 September 2026, Ambrosia is the dominant pollen source in Bozeman. artemisia are also present but at lower levels. grass are not currently active.
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 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
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).
