Hereford pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Hereford is high; grass is high; cypress is low. Tomorrow (26 June 2026) levels are similar - cypress remains low, grass declining. Over the following five days cypress and grass will increase. 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

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

Hereford's parks, including Bishops Meadow, and the River Wye corridor feature oak and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Herefordshire farmland and the orchards of the Golden Valley contribute substantial grass and tree pollen, while the Wye valley channels airflows and concentrates pollen across the historic city under prevailing southwesterly winds.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    17/100

  • Grass (Poaceae):

    High

    57/100

  • 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

    2/100

  • Grass (Poaceae):

    Medium

    43/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Hereford right now?

On 25 June 2026, overall pollen levels in Hereford are high. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in Hereford tomorrow?

On 26 June 2026, pollen conditions in Hereford will be different from today, with cypress at low levels and grass continuing to decline

Is pollen expected to decrease in Hereford this week?

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

Which pollen types are currently active in Hereford?

On 25 June 2026, Grass is the dominant pollen source in Hereford. cypress are also present but at lower levels. alder, birch, hazel, and willow are not currently active.

When is pollen season in Hereford?
Hereford's pollen season opens with hazel and alder from late January, earlier than in northern UK cities due to the mild West Midlands fringe climate. Oak and ash follow through April and May, with grass peaking through June and July. The Wye valley channels airflows and concentrates pollen, while surrounding Herefordshire farmland and Golden Valley orchards extend grass and tree pollen under prevailing southwesterly winds.
How often is the Hereford pollen forecast updated?

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

Does pollen in Hereford 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 Hereford 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 Hereford, 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?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 25 Jun 2026, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Hereford.

For long term forecasts and maps, see the Airmine app

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.