Fosston Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Fosston is moderate; ragweed, mold (alternaria), and mold (cladosporium) are moderate.
Pollen Tomorrow
Tomorrow (11 October 2026) mold (cladosporium) remains moderate, mold (alternaria) declining, ragweed no longer expected.
7-Day Trend
Over the next week ragweed will increase; 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 | 36/100 |
| Mold (Alternaria) | Moderate | 45/100 |
| Mold (Cladosporium) | Moderate | 41/100 |
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) | None | 0/100 | |
| Mold (Alternaria) | Low | 16/100 | |
| Mold (Cladosporium) | Moderate | 27/100 |
Local Environmental Conditions
Around 51% of the area near the center of Fosston is farmland, with some open grassland and built-up land. Locally, open grassland and farmland add grass and weed pollen. Pasture and uncultivated field edges in the farmland provide room for grasses and weeds. Pollen also travels on the wind, so vegetation in the wider surroundings adds to local levels as well.
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 midsummer into mid-fall. Summer is the wettest time of year, and heavy showers can bring short breaks in pollen. By late fall, as temperatures fall to a few degrees below freezing, pollen levels are low again.
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Resource Hub
Pollen forecast neighborhoods 1 neighborhood
Sports venues in Fosston 1 sports venue
Frequently Asked Questions About Pollen in Minnesota
Is pollen high in Fosston right now?
On 10 October 2026, overall pollen levels in Fosston are moderate. Ambrosia is the main contributor to airborne pollen
Will pollen levels change in Fosston tomorrow?
On 11 October 2026, pollen conditions in Fosston will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Fosston this week?
According to the five-day outlook, ambrosia pollen levels will increase later in the week.
Which pollen types are currently active in Fosston?
On 10 October 2026, Ambrosia is the dominant pollen source in Fosston. artemisia and grass are not currently active.
When is pollen season in Fosston?
How often is the Fosston pollen forecast updated?
The Fosston pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Fosston 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 Fosston 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 Fosston, 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).
