Greenstone pollen forecast — Wild Goose Lake Campground neighborhood
Pollen Today
Today (20 September) pollen in Wild Goose Lake Campground, Greenstone is low; ragweed is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass, mugwort, and ragweed will increase.
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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) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 2/100 |
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) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 2/100 |
Local Environmental Conditions
Located near this part of town, this area has the nearest stream or river hosts hazel and willow, two of the most allergenic early-season trees. Nearby, just around the area, the tree cover here leans heavily on oak and birch, both key drivers of spring pollen. The general pattern described here holds fairly steady across nearby areas with similar land cover.
Hazel and willow by the water are typically first out of the gate, getting an early start, typically cresting between February and March. Oak and birch nearby take over the pollen calendar through mid-spring, usually peaking from April into May. Grass pollen builds through late spring and peaks in June, before ragweed becomes the more dominant allergen from mid-August into October.
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Pollen forecast neighborhoods 3 neighborhoods
Frequently Asked Questions About Pollen in Ontario
Is pollen high in Greenstone right now?
On 20 September 2026, overall pollen levels in Greenstone are low. Ambrosia is the main contributor to airborne pollen
Will pollen levels change in Greenstone tomorrow?
On 21 September 2026, pollen conditions in Greenstone will be similar to today, with ambrosia at low levels
Is pollen expected to decrease in Greenstone 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 Greenstone?
On 20 September 2026, Ambrosia is the dominant pollen source in Greenstone. artemisia and grass are not currently active.
When is pollen season in Greenstone?
How often is the Greenstone pollen forecast updated?
The Greenstone pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Greenstone 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 Greenstone 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 Greenstone, 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).
