Roscoe pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Roscoe is medium; mugwort and ragweed are medium; grass is low. Tomorrow (10 August 2026) levels are similar - grass increasing, mugwort increasing, ragweed increasing. 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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Roscoe lies in the Illinois River basin, not far from Big Bureau Creek and Rock Run Rookery Preserve. The surrounding landscape is dominated by bottomland hardwood forest and prairie remnants. Big Bureau Creek winds through the wider area, its banks favoring moisture-loving trees such as willow and alder. Local vegetation still varies with soil type and drainage.

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

    4/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    27/100

  • Ragweed (Ambrosia):

    Medium

    26/100

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

    38/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    61/100

  • Ragweed (Ambrosia):

    High

    62/100

Air quality in Roscoe

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Pollen forecast for neighborhoods and landmarks in Roscoe

Frequently Asked Questions

Is pollen high in Roscoe right now?

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

Will pollen levels change in Roscoe tomorrow?

On 10 August 2026, pollen conditions in Roscoe will be different from today, with ambrosia, artemisia, grass increasing

Is pollen expected to decrease in Roscoe this week?

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

Which pollen types are currently active in Roscoe?

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

When is pollen season in Roscoe?
Along the Spoon River, willow and alder are typically the first trees to shed pollen, with activity building through late winter into early March. The wooded areas near Rock Run Rookery Preserve then carry the tree pollen load into its sharpest phase, typically centered on April and May. Farther out toward the Illinois River and a local forest preserve, tree pollen tends to follow this same rough schedule.
How often is the Roscoe pollen forecast updated?

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

Does pollen in Roscoe 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 Roscoe 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 Roscoe, 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: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Roscoe.

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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.