Feltham pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Feltham is medium; grass is medium. Tomorrow (26 June 2026) levels are similar - grass increasing, cypress at low levels. Over the following five days cypress and grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Feltham's parks and the River Crane corridor feature oak and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up suburban areas. Surrounding Middlesex farmland and the Thames floodplain meadows contribute substantial grass and tree pollen, while Heathrow's open grassland adds further local exposure and the flat landscape allows pollen to disperse readily.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    39/100

  • Willow (Salicaceae):

    None

    0/100

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 - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    11/100

  • Grass (Poaceae):

    High

    61/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Feltham right now?

On 25 June 2026, overall pollen levels in Feltham are moderate. Grass is the main contributor to airborne pollen

Will pollen levels change in Feltham tomorrow?

On 26 June 2026, pollen conditions in Feltham will be different from today, with cypress at low levels and grass increasing

Is pollen expected to decrease in Feltham this week?

According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Feltham?

On 25 June 2026, Grass is the dominant pollen source in Feltham. hazel, cypress, willow, alder, and birch are not currently active.

When is pollen season in Feltham?
Feltham's pollen season opens with hazel and alder from late January, benefiting from the mild London climate. Oak and ash follow through April and May, with grass peaking through June and July. The Crane valley channels airflows, while surrounding Middlesex farmland and Heathrow's open grassland contribute additional grass pollen and the dry southeast climate means fewer rainfall interruptions than in northern UK.
How often is the Feltham pollen forecast updated?

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

Does pollen in Feltham 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 Feltham 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 Feltham, 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?

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Data provided by Airmine — Last update: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Feltham.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.