St. Cloud pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in St. Cloud is medium; grass, mugwort, and ragweed are medium. Tomorrow (10 August 2026) levels are similar - grass remains medium, ragweed remains medium, mugwort declining. Over the following five days ragweed will increase; grass and mugwort 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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St. Cloud's parks, including Riverside Park and the Mississippi River corridor, feature oak, birch, and maple as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Minnesota farmland and woodland contribute substantial grass and tree pollen, while the Mississippi River valley channels airflows and concentrates pollen across the city under prevailing westerly winds.

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

    48/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    30/100

  • Ragweed (Ambrosia):

    Medium

    33/100

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

    40/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    21/100

  • Ragweed (Ambrosia):

    Medium

    26/100

Air quality in St. Cloud

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Pollen forecast for neighborhoods and landmarks in St. Cloud

Frequently Asked Questions

Is pollen high in St. Cloud right now?

On 9 August 2026, overall pollen levels in St. Cloud are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels

Will pollen levels change in St. Cloud tomorrow?

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

Is pollen expected to decrease in St. Cloud this week?

According to the five-day outlook, artemisia and 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 St. Cloud?

On 9 August 2026, Ambrosia is the dominant pollen source in St. Cloud. artemisia and grass are also present but at lower levels. cypress are not currently active.

When is pollen season in St. Cloud?
St. Cloud's pollen season in Minnesota opens with maple and elm from late February, followed by oak and birch through April and May. Grass pollen peaks through June and July, with ragweed extending the season into September. The Mississippi River valley channels airflows and concentrates pollen, while surrounding Minnesota farmland and woodland contribute substantial grass and tree pollen under prevailing westerly winds throughout the season.
How often is the St. Cloud pollen forecast updated?

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

Does pollen in St. Cloud 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 St. Cloud 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 St. Cloud, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for St. Cloud.

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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.