Plainfield pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Plainfield is medium; ragweed is medium; grass and mugwort are low. Tomorrow (10 August 2026) levels are similar - mugwort remains low, ragweed remains medium. Over the following five days grass, mugwort, and ragweed will increase. 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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Plainfield's Union County suburban setting in the greater New York metropolitan area features oak, maple, and sweetgum as the main tree pollen sources, with the dense residential tree canopy and Watchung Reservation's wooded ridgeline shaping local exposure. The Mid-Atlantic climate produces a pronounced spring tree pollen peak, while ragweed and grass pollen extend the season into early autumn.

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

    7/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    16/100

  • Ragweed (Ambrosia):

    Medium

    42/100

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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

  • Ragweed (Ambrosia):

    Medium

    35/100

Air quality in Plainfield

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Frequently Asked Questions

Is pollen high in Plainfield right now?

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

Will pollen levels change in Plainfield tomorrow?

On 10 August 2026, pollen conditions in Plainfield will be different from today, with ambrosia at medium levels, artemisia at low levels

Is pollen expected to decrease in Plainfield this week?

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

Which pollen types are currently active in Plainfield?

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

When is pollen season in Plainfield?
Plainfield's northeastern Illinois Chicago suburban setting 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 DuPage River corridor channels airflows, while the flat Midwest landscape allows pollen to disperse widely throughout the season.
How often is the Plainfield pollen forecast updated?

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

Does pollen in Plainfield 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 Plainfield 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 Plainfield, 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 Plainfield.

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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.