Spilsby pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Spilsby is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort increasing.
7-Day Trend
Over the next week grass and mugwort will increase; cypress and willow will remain stable.
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Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
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) | Low | 23/100 |
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 | 38/100 |
Local Environmental Conditions
Tree pollen in Spilsby comes mostly from rowan and birch, with parks and mature gardens standing in contrast to the more built-up centre. Surrounding Lincolnshire farmland contributes substantial grass and tree pollen, moving into town when winds blow from the east. It's a pattern shared by plenty of similarly sized towns nearby, shaped more by geography than anything unusual locally.
If you're wondering when hay fever kicks off in Spilsby, it's mostly down to rowan and birch. Grass pollen then stretches from May into September, with the worst of it typically landing in June and July. Rowan gets going around May and tapers off by June, and birch keeps things going from March right through to May. Useful to know if you tend to feel it every spring.
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Frequently Asked Questions About Pollen in Lincolnshire
Is pollen high in Spilsby right now?
On 20 September 2026, overall pollen levels in Spilsby are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Spilsby tomorrow?
On 21 September 2026, pollen conditions in Spilsby will be different from today, with artemisia increasing
Is pollen expected to decrease in Spilsby 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 Spilsby?
On 20 September 2026, Artemisia is the dominant pollen source in Spilsby. cypress, grass, and willow are not currently active.
When is pollen season in Spilsby?
How often is the Spilsby pollen forecast updated?
The Spilsby pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Spilsby 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 Spilsby 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 Spilsby, 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).
