Town of Lewiston pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Town of Lewiston is high; mugwort is high; ragweed is medium. Tomorrow (10 August 2026) levels are similar - mugwort remains high, ragweed remains medium, grass at low levels. 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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Located close to home here, this area has the waterside growth here is largely hazel and willow, both efficient wind-pollen dispersers. Oak and birch make up the bulk of this woodland, birch being the more potent allergen of the two, close by. Local wind exposure and land use can shift the exact mix slightly from block to block.

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):

    High

    53/100

  • Ragweed (Ambrosia):

    Medium

    34/100

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

    5/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    60/100

  • Ragweed (Ambrosia):

    Medium

    44/100

Air quality in Town of Lewiston

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Frequently Asked Questions

Is pollen high in Town of Lewiston right now?

On 9 August 2026, overall pollen levels in Town of Lewiston are high. Artemisia is the main contributor to airborne pollen, while ambrosia remain at lower levels

Will pollen levels change in Town of Lewiston tomorrow?

On 10 August 2026, pollen conditions in Town of Lewiston will be different from today, with artemisia at high levels, grass at low levels, ambrosia at medium levels

Is pollen expected to decrease in Town of Lewiston 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 Town of Lewiston?

On 9 August 2026, Artemisia is the dominant pollen source in Town of Lewiston. ambrosia are also present but at lower levels. cypress and grass are not currently active.

When is pollen season in Town of Lewiston?
The water-adjacent hazel and willow are early risers, climbing steadily from late winter into March. Oak and birch in the woodland come next, through the heart of spring, reaching its high point through April and into May. Grass pollen builds through late spring and peaks in June, handing off to ragweed, which peaks from mid-August through October.
How often is the Town of Lewiston pollen forecast updated?

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

Does pollen in Town of Lewiston 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 Town of Lewiston 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 Town of Lewiston, 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?

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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 Town of Lewiston.

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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.