Egham pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Egham is high; mugwort is high; grass is low. Tomorrow (10 August 2026) levels are similar - mugwort declining. 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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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Egham's parks and green spaces feature oak and beech as the main tree pollen sources, with exposure varying between these greener areas and the more built-up town centre. Surrounding Surrey farmland contributes substantial grass and tree pollen, moving into town when winds blow from the west. Seasonal peaks tend to track the wider regional pattern, tree pollen leading in spring and grass through summer.
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):
Low
25/100
-
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 - 10 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):
Medium
49/100
Air quality in Egham
View air qualityFrequently Asked Questions
Is pollen high in Egham right now?
On 9 August 2026, overall pollen levels in Egham are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Egham tomorrow?
On 10 August 2026, pollen conditions in Egham will be different from today, with artemisia continuing to decline
Is pollen expected to decrease in Egham 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 Egham?
On 9 August 2026, Artemisia is the dominant pollen source in Egham. grass are also present but at lower levels. willow, hazel, and cypress are not currently active.
When is pollen season in Egham?
How often is the Egham pollen forecast updated?
The Egham pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Egham 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 Egham 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 Egham, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Egham.
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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.