Llanfyllin pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Llanfyllin is high; mugwort is high; grass is low. Tomorrow (31 August 2026) levels are similar - mugwort remains high. Over the following five days grass and mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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In Llanfyllin, alder and oak dominate the local tree pollen picture, with parks and tree-lined residential streets offering more exposure than the compact centre. Surrounding Powys farmland contributes substantial grass and tree pollen, moving into town when winds blow from the the coast. It's a pattern shared by plenty of similarly sized towns nearby, shaped more by geography than anything unusual locally.

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):

    Low

    12/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    54/100

Air quality in Llanfyllin

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Frequently Asked Questions

Is pollen high in Llanfyllin right now?

On 30 August 2026, overall pollen levels in Llanfyllin are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Llanfyllin tomorrow?

On 31 August 2026, pollen conditions in Llanfyllin will be different from today, with artemisia at high levels

Is pollen expected to decrease in Llanfyllin this week?

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

Which pollen types are currently active in Llanfyllin?

On 30 August 2026, Artemisia is the dominant pollen source in Llanfyllin. grass are also present but at lower levels. hazel, cypress, and willow are not currently active.

When is pollen season in Llanfyllin?
Want to know what triggers spring allergies in Llanfyllin? Start with birch, then oak. You'll usually see birch pollen from around March through May, with oak picking up between April and May. Then grass pollen takes the baton from May all the way to September, usually peaking in June and July — that's when most people really feel it. Handy to bear in mind before booking that garden party.
How often is the Llanfyllin pollen forecast updated?

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

Does pollen in Llanfyllin 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 Llanfyllin 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 Llanfyllin, 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 Kingdom?

Birmingham Bristol Glasgow Leeds Liverpool London Manchester Portsmouth Sheffield Southampton

Check pollen in other popular cities:

Melton Rio de Janeiro Copenhagen Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

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 Llanfyllin.

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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.