Hatherleigh pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Hatherleigh is moderate; mugwort is moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass will increase; mugwort will decrease; cypress and willow will remain stable.
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Pollen Risk
Today - 20 September
| 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) | Moderate | 40/100 |
Tomorrow - 21 September
| 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) | Moderate | 48/100 |
Local Environmental Conditions
Residents in Hatherleigh dealing with hay fever usually point to plane and lime as the culprits, particularly in spring near parks and gardens. Grass pollen from surrounding Devon fields is significant through the summer months, carried in by inland breezes from the surrounding countryside. This mix of urban and rural influence gives Hatherleigh a fairly typical pollen pattern for the wider region.
So here's the rundown for Hatherleigh: plane pollen shows up first, then lime takes over. Plane pollen typically runs from April to June, before lime takes over, usually May to July. On top of that, grass pollen runs May to September and tends to hit hardest in June and July. Good to know if you're planning anything outdoors that time of year.
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Frequently Asked Questions About Pollen in Devon
Is pollen high in Hatherleigh right now?
On 20 September 2026, overall pollen levels in Hatherleigh are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Hatherleigh tomorrow?
On 21 September 2026, pollen conditions in Hatherleigh will be similar to today, with artemisia at moderate levels
Is pollen expected to decrease in Hatherleigh this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Hatherleigh?
On 20 September 2026, Artemisia is the dominant pollen source in Hatherleigh. willow, cypress, and grass are not currently active.
When is pollen season in Hatherleigh?
How often is the Hatherleigh pollen forecast updated?
The Hatherleigh pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hatherleigh 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 Hatherleigh 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 Hatherleigh, 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 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
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).
