Greenfield pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Greenfield is medium; ragweed is medium; mugwort is low. Tomorrow (10 August 2026) levels are similar. Over the following five days 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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The vegetation around Greenfield, on a Connecticut River Valley town beneath the Berkshire foothills, is dominated by oak-hickory forest and riverside silver maple, with farmland grasses adding further seasonal pollen exposure. This mix of plant life is fairly typical for the wider area around Greenfield. The mix of native and introduced species here is fairly typical for this part of the country.

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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    11/100

  • 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

    5/100

  • Ragweed (Ambrosia):

    Medium

    39/100

Air quality in Greenfield

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Frequently Asked Questions

Is pollen high in Greenfield right now?

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

Will pollen levels change in Greenfield tomorrow?

On 10 August 2026, pollen conditions in Greenfield will be similar to today, with ambrosia at medium levels, artemisia at low levels

Is pollen expected to decrease in Greenfield this week?

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

Which pollen types are currently active in Greenfield?

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

When is pollen season in Greenfield?
The pollen calendar in Greenfield opens with maple and elm starting March with birch and oak taking the lead through April and May. Grass pollen then peaks through June and July, and a modest weed pollen tail continues into September. A relatively short growing season compresses tree, grass, and weed pollen into a more intense stretch, a defining feature of the local season.
How often is the Greenfield pollen forecast updated?

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

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

This page provides the latest public pollen forecast for Greenfield.

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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.