Willow River Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Willow River is moderate; ragweed, mold (alternaria), and mold (cladosporium) are moderate.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (alternaria) remains moderate, mold (cladosporium) remains moderate, ragweed declining.
7-Day Trend
Over the next week ragweed, mold (alternaria), and mold (cladosporium) will decrease; grass and mugwort will remain stable.
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Pollen Risk
Today - 10 October
| 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) | Moderate | 35/100 |
| Mold (Alternaria) | Moderate | 27/100 |
| Mold (Cladosporium) | Moderate | 35/100 |
Tomorrow - 11 October
| 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 | 20/100 | |
| Mold (Alternaria) | Moderate | 37/100 | |
| Mold (Cladosporium) | Moderate | 44/100 |
Local Environmental Conditions
The area around Willow River is mostly woodland, with some open grassland. Close to the Willow River, riverside vegetation adds to local tree pollen. The surrounding woodland makes trees an important local pollen source. Grasses are also a significant pollen source here. Roadside verges and patches of open ground provide further room for grasses and weeds.
Flowering trees bring the first pollen of the year in late spring. Grasses take over in early summer, with temperatures around 20°C, and their pollen lingers into late summer. Weeds on open ground add a smaller late peak from early summer into early fall. Rain is heaviest in summer, often giving short breaks from high pollen levels.
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Frequently Asked Questions About Pollen in Minnesota
Is pollen high in Willow River right now?
On 10 October 2026, overall pollen levels in Willow River are moderate. Ambrosia is the main contributor to airborne pollen
Will pollen levels change in Willow River tomorrow?
On 11 October 2026, pollen conditions in Willow River will be different from today, with ambrosia continuing to decline
Is pollen expected to decrease in Willow River this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Willow River?
On 10 October 2026, Ambrosia is the dominant pollen source in Willow River. artemisia and grass are not currently active.
When is pollen season in Willow River?
How often is the Willow River pollen forecast updated?
The Willow River pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Willow River 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 Willow River 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 Willow River, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
