Groton pollen forecast — West Groton neighborhood

Today (30 August) pollen in West Groton, Groton is high; ragweed is high; grass is moderate; mugwort is low. Tomorrow (31 August 2026) levels are similar. Over the following five days grass and ragweed will increase; mugwort 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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This area, not far from here, has hazel and willow cluster near the water, an early and reliable source of allergenic pollen. This area, just outside the immediate area, has parkland with regularly mown grass and planted trees, both sources of grass and ragweed pollen. Seasonal timing here generally tracks the wider region, give or take a week or so.

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

    35/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    19/100

  • Ragweed (Ambrosia):

    High

    59/100

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

    33/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    15/100

  • Ragweed (Ambrosia):

    High

    54/100

Other Landmarks in Groton

Sports venues in Groton

Frequently Asked Questions

Is pollen high in Groton right now?

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

Will pollen levels change in Groton tomorrow?

On 31 August 2026, pollen conditions in Groton will be similar to today, with grass at moderate levels, ambrosia at high levels, artemisia at low levels

Is pollen expected to decrease in Groton this week?

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

Which pollen types are currently active in Groton?

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

When is pollen season in Groton?
Hazel and willow by the water are typically first out of the gate, topping out well before most other trees start releasing pollen, around February and March. Grass pollen takes over next, building to a peak around June, and ragweed later takes the lead from mid-August through October. Regional pollen monitoring generally reflects this same pattern across nearby areas.
How often is the Groton pollen forecast updated?

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

Does pollen in Groton 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 Groton 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 Groton, 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: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for West Groton, Groton.

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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.