Vernal pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Vernal is medium; grass and mugwort are medium; ragweed is low. Tomorrow (10 August 2026) levels are similar - mugwort remains medium, ragweed remains low, 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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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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The vegetation around Vernal, on high desert basin country in eastern Utah's Uinta Basin, is dominated by sagebrush steppe and piñon-juniper woodland, with irrigated hayfields adding further seasonal pollen exposure. Individual yards and gardens around Vernal can still vary somewhat from this general pattern. Small local variations aside, this pattern holds fairly steady from year to year.

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):

    Medium

    28/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    36/100

  • Ragweed (Ambrosia):

    Low

    24/100

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):

    Low

    21/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    32/100

  • Ragweed (Ambrosia):

    Low

    20/100

Air quality in Vernal

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Frequently Asked Questions

Is pollen high in Vernal right now?

On 9 August 2026, overall pollen levels in Vernal are moderate. Artemisia is the main contributor to airborne pollen, while grass and ambrosia remain at lower levels

Will pollen levels change in Vernal tomorrow?

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

Is pollen expected to decrease in Vernal 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 Vernal?

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

When is pollen season in Vernal?
Vernal's tree pollen season begins with juniper and cottonwood from March before ash takes over and peaks through April. Grass pollen rises through May and June, and grass pollen lingers into early September before tapering off. The dry mountain climate offers fewer rain breaks than more humid parts of the country throughout the year.
How often is the Vernal pollen forecast updated?

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

Does pollen in Vernal 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 Vernal 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 Vernal, 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 Vernal.

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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.