Cortez pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Cortez is high; grass is high; ragweed is medium; mugwort is low. Tomorrow (10 August 2026) levels are similar - mugwort remains low, ragweed remains medium, grass declining. Over the following five days grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Cortez's setting on a high-desert valley town near Mesa Verde in southwestern Colorado supports sagebrush steppe, piñon-juniper woodland, and irrigated hayfields as the leading local vegetation, all factoring into the pollen count through the year. Counts here rise and fall with the same broad rhythm as other places sharing this setting. Microclimates within the area can shift the timing slightly from one neighborhood to the next.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    High

    53/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    23/100

  • Ragweed (Ambrosia):

    Medium

    37/100

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 - 10 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    49/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    22/100

  • Ragweed (Ambrosia):

    Medium

    35/100

Air quality in Cortez

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Frequently Asked Questions

Is pollen high in Cortez right now?

On 9 August 2026, overall pollen levels in Cortez are high. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels

Will pollen levels change in Cortez tomorrow?

On 10 August 2026, pollen conditions in Cortez will be different from today, with ambrosia at medium levels, artemisia at low levels and grass continuing to decline

Is pollen expected to decrease in Cortez this week?

According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.

Which pollen types are currently active in Cortez?

On 9 August 2026, Grass is the dominant pollen source in Cortez. ambrosia and artemisia are also present but at lower levels. cypress are not currently active.

When is pollen season in Cortez?
Cortez's pollen season opens with juniper and cottonwood from March with ash following close behind through April. Grass pollen then peaks through May and June, and sagebrush and ragweed extend the season into September. The semi-arid high-elevation climate means fewer rainfall interruptions than in wetter US regions throughout the year.
How often is the Cortez pollen forecast updated?

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

Does pollen in Cortez 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 Cortez 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 Cortez, 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?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Cortez.

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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.