Arlington pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Arlington is medium; ragweed is medium; grass and mugwort are low. Tomorrow (10 August 2026) levels are similar. 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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Arlington's parks, including Quincy Park and the Mystic River corridor, feature oak, birch, and maple as the main tree pollen sources, with exposure varying between these green areas and the densely built town centre. As part of the greater Boston metropolitan area, local sources dominate, though surrounding Massachusetts woodland and farmland contribute additional grass and tree pollen under prevailing westerly winds.

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

    5/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

  • Ragweed (Ambrosia):

    Medium

    36/100

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):

    Low

    6/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    7/100

  • Ragweed (Ambrosia):

    Medium

    39/100

Air quality in Arlington

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Pollen forecast for neighborhoods and landmarks in Arlington

Frequently Asked Questions

Is pollen high in Arlington right now?

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

Will pollen levels change in Arlington tomorrow?

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

Is pollen expected to decrease in Arlington 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 Arlington?

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

When is pollen season in Arlington?
Arlington's pollen season in Massachusetts opens with maple and birch from late February, followed by oak through April and May. Grass pollen peaks through June and July, with ragweed contributing into September. As part of the greater Boston metropolitan area, the season is well-defined and intense, while surrounding Massachusetts woodland and farmland contribute additional grass and tree pollen under prevailing westerly winds.
How often is the Arlington pollen forecast updated?

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

Does pollen in Arlington 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 Arlington 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 Arlington, 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 Arlington.

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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.