Saint James Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (11 October) pollen in Saint James is moderate; mugwort, ragweed, mold (alternaria), and mold (cladosporium) are moderate.
Pollen Tomorrow
Tomorrow (12 October 2026) mold (alternaria) remains moderate, mold (cladosporium) remains moderate, ragweed declining, mugwort no longer expected.
7-Day Trend
Over the next week mugwort will increase; ragweed, mold (alternaria), and mold (cladosporium) will decrease; grass will remain stable.
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Pollen Risk
Today - 11 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) | Moderate | 26/100 |
| Ragweed (Ambrosia) | Moderate | 39/100 |
| Mold (Alternaria) | Moderate | 36/100 |
| Mold (Cladosporium) | Moderate | 33/100 |
Tomorrow - 12 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 | 10/100 | |
| Mold (Alternaria) | Moderate | 49/100 | |
| Mold (Cladosporium) | Moderate | 40/100 |
Local Environmental Conditions
Woodland makes up around 40% of the area near the center of Saint James, with a good deal of built-up land and some open grassland. A nearby park adds mown lawns and planted trees to the local pollen mix. So much tree cover makes trees an important source of pollen locally. Grass pollen adds noticeably to the overall load.
Flowering trees bring the first pollen of the year in mid-spring. Then come the grasses, strongest in late spring and fading by early fall. A smaller weed peak follows from early summer into early fall. In warm, humid weather through summer, mold spores add to the mix, especially after rain. By late fall, as temperatures fall to around freezing, pollen levels are low again.
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Frequently Asked Questions About Pollen in Minnesota
Is pollen high in Saint James right now?
On 11 October 2026, overall pollen levels in Saint James are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels
Will pollen levels change in Saint James tomorrow?
On 12 October 2026, pollen conditions in Saint James will be different from today, with ambrosia continuing to decline
Is pollen expected to decrease in Saint James this week?
According to the five-day outlook, ambrosia pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Saint James?
On 11 October 2026, Ambrosia is the dominant pollen source in Saint James. artemisia are also present but at lower levels. grass are not currently active.
When is pollen season in Saint James?
How often is the Saint James pollen forecast updated?
The Saint James pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Saint James 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 Saint James 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 Saint James, 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).
