Colby pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Colby is moderate; grass, mugwort, and ragweed are moderate. Tomorrow (31 August 2026) levels are similar - grass remains moderate, mugwort increasing, ragweed increasing. Over the following five days grass will increase; 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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The vegetation around Colby, on high, flat wheat plains in northwestern Kansas, is dominated by wheat fields and shortgrass prairie, with irrigated corn adding further seasonal pollen exposure. This mix of plant life is fairly typical for the wider area around Colby. None of this differs sharply from one year to the next barring unusual weather.

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):

    Moderate

    28/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    46/100

  • Ragweed (Ambrosia):

    Moderate

    50/100

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):

    Moderate

    47/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    61/100

  • Ragweed (Ambrosia):

    High

    67/100

Air quality in Colby

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Frequently Asked Questions

Is pollen high in Colby right now?

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

Will pollen levels change in Colby tomorrow?

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

Is pollen expected to decrease in Colby this week?

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

Which pollen types are currently active in Colby?

On 30 August 2026, Ambrosia is the dominant pollen source in Colby. artemisia and grass are also present but at lower levels. cypress are not currently active.

When is pollen season in Colby?
Colby's tree pollen season begins with elm and cottonwood from March before ash takes over and peaks through April. Peak grass pollen arrives in May and June, and ragweed pollen builds through late summer into September. The continental climate and surrounding farmland drive a well-defined spring tree peak and a strong late-summer ragweed season, a defining feature of the local season.
How often is the Colby pollen forecast updated?

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

Does pollen in Colby 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 Colby 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 Colby, 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.

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Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Colby.

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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.