Long Lake Township pollen forecast — The Harbor On Crescent Bay neighborhood
Pollen Today
Today (20 September) pollen in The Harbor On Crescent Bay, Long Lake Township is low; grass and ragweed are low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed remains low, grass no longer expected.
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) | Low | 3/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 21/100 |
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 | 3/100 |
Local Environmental Conditions
In The Harbor On Crescent Bay, here, just around the area, along the damp banks, hazel and willow release some of the year's first tree pollen. The broader area tends to mirror this pattern, with only minor local variation. Seasonal timing here generally tracks the wider region, give or take a week or so.
For The Harbor On Crescent Bay, the waterside hazel and willow are consistently first to release pollen each year, building through the tail end of winter into March. Grass pollen counts rise through late spring, reaching their peak around June, before ragweed's late-summer surge carries the season into October. Small variations in local weather can nudge these windows a few days in either direction.
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Frequently Asked Questions About Pollen in Minnesota
Is pollen high in Long Lake Township right now?
On 20 September 2026, overall pollen levels in Long Lake Township are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Long Lake Township tomorrow?
On 21 September 2026, pollen conditions in Long Lake Township will be different from today, with ambrosia at low levels
Is pollen expected to decrease in Long Lake Township this week?
According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Long Lake Township?
On 20 September 2026, Grass is the dominant pollen source in Long Lake Township. ambrosia are also present but at lower levels. artemisia are not currently active.
When is pollen season in Long Lake Township?
How often is the Long Lake Township pollen forecast updated?
The Long Lake Township pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Long Lake Township 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 Long Lake Township 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 Long Lake Township, 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).
