Westford pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Westford is high; ragweed is high; grass is moderate; mugwort is low. Tomorrow (31 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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Around Westford, nearby, close by, the water's edge is thick with hazel and willow, whose pollen spreads readily in early spring. Here, within the local area, grass and ornamental trees within the park boundary contribute modestly to grass and ragweed levels. Comparable land cover in surrounding areas tends to produce a similar pollen mix overall.

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

    40/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    13/100

  • Ragweed (Ambrosia):

    High

    68/100

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

    36/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

  • Ragweed (Ambrosia):

    High

    61/100

Air quality in Westford

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Pollen forecast for neighborhoods and landmarks in Westford

Sports venues in Westford

Frequently Asked Questions

Is pollen high in Westford right now?

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

Will pollen levels change in Westford tomorrow?

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

Is pollen expected to decrease in Westford 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 Westford?

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

When is pollen season in Westford?
At Westford, hazel and willow near the water open the pollen calendar early, starting well before the main spring rush, topping out around March. Late spring brings rising grass pollen that crests in June, handing off to ragweed, which peaks from mid-August through October. Small variations in local weather can nudge these windows a few days in either direction.
How often is the Westford pollen forecast updated?

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

Does pollen in Westford 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 Westford 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 Westford, 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 08:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Westford.

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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.