Bozeman pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Bozeman is low; grass is low. Tomorrow (17 July 2026) levels are similar - grass increasing, ragweed at low levels. Over the following five days ragweed will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Bozeman's Gallatin River valley Montana setting features cottonwood, alder, and ponderosa pine as the main tree pollen sources, with exposure varying between the wooded Gallatin River corridor and the ponderosa pine-covered Bridger Range and the more built-up commercial corridors along Main Street. The Gallatin River corridor is a particularly significant local source, while the mountain-valley elevation gradient creates distinct pollen zones between the forested ranges and the agricultural valley floor.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    9/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    None

    0/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    35/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    9/100

Air quality in Bozeman

View air quality

Pollen forecast for neighborhoods and landmarks in Bozeman

Museum of the Rockies

Sports venues in Bozeman

The Club at Spanish Peaks – Championship Course

Frequently Asked Questions

Is pollen high in Bozeman right now?

On 16 July 2026, overall pollen levels in Bozeman are low. Grass is the main contributor to airborne pollen

Will pollen levels change in Bozeman tomorrow?

On 17 July 2026, pollen conditions in Bozeman will be different from today, with ambrosia at low levels and grass increasing

Is pollen expected to decrease in Bozeman this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while ambrosia pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Bozeman?

On 16 July 2026, Grass is the dominant pollen source in Bozeman. birch, cypress, oak, willow, alder, ambrosia, and artemisia are not currently active.

When is pollen season in Bozeman?
Bozeman's Montana Rocky Mountain setting at elevation produces a season opening in late March with cottonwood and alder before grass from surrounding mountain valley farmland peaks through May and June. Mugwort from surrounding rangeland extends exposure into September, while the Gallatin River valley concentrates pollen and the elevated Rocky Mountain setting means a more compressed season than in lower elevation cities.
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.

Want to see pollen forecasts for other cities in United States?

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Data provided by Airmine — Last update: 16 July 2026 at 05:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Bozeman.

For long term forecasts and maps, see the Airmine app

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