Vernal pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Vernal is moderate; mugwort and ragweed are moderate. Tomorrow (31 August 2026) levels are similar - mugwort increasing, ragweed increasing, grass at low levels. Over the following five days grass and mugwort will increase; ragweed will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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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 - 30 August

  • 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):

    Moderate

    38/100

  • Ragweed (Ambrosia):

    Moderate

    46/100

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 - 31 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    13/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    61/100

  • Ragweed (Ambrosia):

    High

    70/100

Air quality in Vernal

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Frequently Asked Questions

Is pollen high in Vernal right now?

On 30 August 2026, overall pollen levels in Vernal are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels

Will pollen levels change in Vernal tomorrow?

On 31 August 2026, pollen conditions in Vernal will be different from today, with grass at low levels and ambrosia, artemisia increasing

Is pollen expected to decrease in Vernal this week?

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

Which pollen types are currently active in Vernal?

On 30 August 2026, Ambrosia is the dominant pollen source in Vernal. artemisia are also present but at lower levels. cypress and grass 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?

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Data provided by Airmine — Last update: 30 August 2026 at 08:36 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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.