Olathe pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Olathe is medium; mugwort and ragweed are medium; grass is low. Tomorrow (10 August 2026) levels are similar - grass remains low, ragweed remains medium, mugwort declining. Over the following five days grass, mugwort, 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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Olathe's parks, including Mahaffie Farmstead and the Cedar Creek corridor, feature oak, maple, and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Kansas and Missouri farmland and prairie contribute substantial grass and crop pollen, while the flat, open landscape allows pollen to disperse readily across the city under prevailing southwesterly 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):

    Low

    25/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    30/100

  • Ragweed (Ambrosia):

    Medium

    45/100

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

    13/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    19/100

  • Ragweed (Ambrosia):

    Medium

    36/100

Air quality in Olathe

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Frequently Asked Questions

Is pollen high in Olathe right now?

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

Will pollen levels change in Olathe tomorrow?

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

Is pollen expected to decrease in Olathe this week?

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

Which pollen types are currently active in Olathe?

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

When is pollen season in Olathe?
Olathe's pollen season opens with elm and maple from late February, followed by oak and ash through April and May. Grass pollen peaks through June and July, with ragweed extending the season strongly into October. The flat, open Kansas and Missouri farmland landscape allows substantial grass and crop pollen to disperse widely under prevailing southwesterly winds, while the humid continental climate produces well-defined and intense seasonal peaks.
How often is the Olathe pollen forecast updated?

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

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

This page provides the latest public pollen forecast for Olathe.

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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.