Leeds and the Thousand Islands pollen forecast - today, tomorrow and the week ahead
Today (30 August) pollen in Leeds and the Thousand Islands is high; ragweed is high; grass and mugwort are moderate. Tomorrow (31 August 2026) levels are similar - mugwort remains moderate, ragweed remains high, grass declining. Over the following five days grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Around Leeds and the Thousand Islands, hazel and willow cluster near the Thousand Islands, an early source of allergenic pollen. Near Leeds and the Thousand Islands, oak and birch grow in a nearby forest; birch is a potent tree allergen. Leeds and the Thousand Islands has nearby parkland's lawns and planted trees add a small share of grass and ragweed pollen.
Today - 30 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Moderate
31/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Moderate
39/100
-
Ragweed (Ambrosia):
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 - 31 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
22/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Moderate
26/100
-
Ragweed (Ambrosia):
High
64/100
Air quality in Leeds and the Thousand Islands
View air qualityPollen forecast for neighborhoods and landmarks in Leeds and the Thousand Islands
Frequently Asked Questions
Is pollen high in Leeds and the Thousand Islands right now?
On 30 August 2026, overall pollen levels in Leeds and the Thousand Islands are high. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels
Will pollen levels change in Leeds and the Thousand Islands tomorrow?
On 31 August 2026, pollen conditions in Leeds and the Thousand Islands will be different from today, with ambrosia at high levels, artemisia at moderate levels and grass continuing to decline
Is pollen expected to decrease in Leeds and the Thousand Islands this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Leeds and the Thousand Islands?
On 30 August 2026, Ambrosia is the dominant pollen source in Leeds and the Thousand Islands. artemisia and grass are also present but at lower levels. cypress are not currently active.
When is pollen season in Leeds and the Thousand Islands?
How often is the Leeds and the Thousand Islands pollen forecast updated?
The Leeds and the Thousand Islands pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Leeds and the Thousand Islands 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 Leeds and the Thousand Islands 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 Leeds and the Thousand Islands, 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.
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Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Leeds and the Thousand Islands.
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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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.