Stanmore Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Stanmore is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (alternaria) remains low, mold (cladosporium) increasing, mugwort at low levels.
7-Day Trend
Over the next week mugwort will increase; mold (alternaria) and mold (cladosporium) will decrease; cypress, grass, and willow will remain stable.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| 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) | None | 0/100 |
| Mold (Alternaria) | Low | 10/100 |
| Mold (Cladosporium) | Low | 25/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| 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) | Low | 9/100 | |
| Mold (Alternaria) | Low | 16/100 | |
| Mold (Cladosporium) | Moderate | 31/100 |
Local Environmental Conditions
The heart of Stanmore is surrounded mainly by woodland, which covers just over 55% of the nearby area, with a good deal of built-up land. The leading allergenic tree nearby is oak, with birch and maple close behind. Grasses and weeds such as plantain and pigweed round out the local mix. Compared with most places, oak is especially widespread here, which makes it one of the key local allergens.
Oak, birch and maple lead the season in late spring, as temperatures climb to around 15°C, and tree pollen reaches its peak. Then come the grasses, strongest in early summer and fading by late summer. The season closes with plantain and pigweed from late spring into late summer. The oak period in late spring is usually the most intense time of year here.
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Frequently Asked Questions About Pollen in Harrow
Is pollen high in Stanmore right now?
Currently, there is no significant pollen in Stanmore.
Will pollen levels change in Stanmore tomorrow?
On 11 October 2026, pollen conditions in Stanmore will be different from today, with artemisia at low levels
Is pollen expected to decrease in Stanmore this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Stanmore?
On 10 October 2026, there are no significant pollen types in Stanmore.
When is pollen season in Stanmore?
How often is the Stanmore pollen forecast updated?
The Stanmore pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Stanmore 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 Stanmore 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 Stanmore, 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.
Understanding the Scale
The 0–100 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
