Nashua pollen forecast — Downtown Nashua neighborhood

Today (30 August) pollen in Downtown Nashua, Nashua 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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As the city's compact downtown core, Downtown Nashua draws on the same plant life found across Nashua, keeping its pollen sources in step with the wider area. Exposure here depends mainly on how much tree and lawn cover surrounds the immediate site.

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

    22/100

  • Ragweed (Ambrosia):

    High

    70/100

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

    28/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    12/100

  • Ragweed (Ambrosia):

    High

    70/100

Other Landmarks in Nashua

Frequently Asked Questions

Is pollen high in Nashua right now?

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

Will pollen levels change in Nashua tomorrow?

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

Is pollen expected to decrease in Nashua this week?

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

Which pollen types are currently active in Nashua?

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

When is pollen season in Nashua?
At Downtown Nashua, a neighborhood in Nashua, the pollen season opens with maple and elm from March with birch and oak joining in and continuing through April and May. Grass pollen builds through June and July, and ragweed and mugwort keep weed pollen elevated into September. The New England climate compresses tree, grass, and weed pollen into a shorter but intense season throughout the year.
How often is the Nashua pollen forecast updated?

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

Does pollen in Nashua 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 Nashua 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 Nashua, 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 Downtown Nashua, Nashua.

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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.