Crested Butte pollen forecast - today, tomorrow and the week ahead

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

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Set on a high alpine valley at 8,900 feet in the Elk Mountains, Crested Butte's landscape is defined by aspen groves alongside subalpine fir and wildflower meadows, the main contributors to seasonal pollen exposure. Local parks and open ground tend to see higher pollen counts than the denser urban core. The mix of native and introduced species here is fairly typical for this part of the country.

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

    23/100

  • 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):

    High

    54/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Medium

    32/100

Air quality in Crested Butte

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Frequently Asked Questions

Is pollen high in Crested Butte right now?

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

Will pollen levels change in Crested Butte tomorrow?

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

Is pollen expected to decrease in Crested Butte this week?

According to the five-day outlook, ambrosia and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Crested Butte?

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

When is pollen season in Crested Butte?
In Crested Butte, pollen season begins with juniper and cottonwood starting in March then ash builds through April. Grass pollen then peaks through May and June, and sagebrush and ragweed extend the season into September. The dry mountain climate offers fewer rain breaks than more humid parts of the country, a defining feature of the local season.
How often is the Crested Butte pollen forecast updated?

The Crested Butte pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Crested Butte 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 Crested Butte 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 Crested Butte, 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.

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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Crested Butte.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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