Wheaton pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Wheaton is high; grass is high; cypress is low. Tomorrow (26 June 2026) levels are similar - grass declining. Over the following five days cypress and grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Wheaton's DuPage County Illinois suburban setting features oak, maple, and elm as the main tree pollen sources, with exposure varying between the wooded Lincoln Marsh and Gary's Mill Creek corridor areas and the more built-up commercial corridors along West Loop Road. The Lincoln Marsh Natural Area provides particularly significant local native wetland pollen, while the numerous DuPage County Forest Preserve areas create distinct forested-urban pollen gradients throughout this historic county seat.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    9/100

  • Grass (Poaceae):

    High

    51/100

  • Willow (Salicaceae):

    None

    0/100

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 - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    22/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Wheaton right now?

On 25 June 2026, overall pollen levels in Wheaton are high. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in Wheaton tomorrow?

On 26 June 2026, pollen conditions in Wheaton will be different from today, with grass continuing to decline

Is pollen expected to decrease in Wheaton this week?

According to the five-day outlook, cypress and grass pollen levels will increase later in the week.

Which pollen types are currently active in Wheaton?

On 25 June 2026, Grass is the dominant pollen source in Wheaton. cypress are also present but at lower levels. hazel and willow are not currently active.

When is pollen season in Wheaton?
Wheaton's Chicago suburban setting in DuPage County produces a season opening in late March with elm and maple before oak peaks through May. Grass from surrounding Illinois farmland peaks through June and July before mugwort and nettle extend exposure into September. The West Branch DuPage River corridor channels airflows, while the flat Midwest landscape allows pollen to disperse widely throughout the season.
How often is the Wheaton pollen forecast updated?

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

Does pollen in Wheaton 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 Wheaton 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 Wheaton, 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: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Wheaton.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.