Glasgow pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Glasgow is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort increasing.
7-Day Trend
Over the next week mugwort will decrease; cypress, grass, 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 | 22/100 |
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 | 41/100 |
Local Environmental Conditions
Seasonal peaks tend to track the wider regional pattern, tree pollen leading in spring and grass through summer. That's on top of rowan and alder, which are the main local tree pollen sources around Glasgow's parks and quieter streets. Local farmland and hedgerows nearby add meaningful grass pollen through late spring and summer, especially under cooler northerly winds.
Locals in Glasgow usually notice rowan first, with alder not far behind it. Rowan pollen typically runs from May to June, before alder takes over, usually January to April. Grass season overlaps a lot of this too, running May through September and peaking mid-summer. Not a bad idea to stock up on antihistamines before it all kicks off.
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Resource Hub
Pollen forecast neighborhoods 5 neighborhoods
Popular Local Routes 1 route
Local parkruns 43 parkruns
Local events 1 event
Frequently Asked Questions About Pollen in Glasgow City
Is pollen high in Glasgow right now?
On 20 September 2026, overall pollen levels in Glasgow are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Glasgow tomorrow?
On 21 September 2026, pollen conditions in Glasgow will be different from today, with artemisia increasing
Is pollen expected to decrease in Glasgow this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Glasgow?
On 20 September 2026, Artemisia is the dominant pollen source in Glasgow. cypress, grass, and willow are not currently active.
When is pollen season in Glasgow?
How often is the Glasgow pollen forecast updated?
The Glasgow pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Glasgow 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 Glasgow 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 Glasgow, 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).
