Spencer Township, Michigan pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Spencer Township, Michigan is high; grass is high; mugwort and ragweed are moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) grass declining, ragweed declining, mugwort 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) | High | 52/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 28/100 |
| Ragweed (Ambrosia) | Moderate | 49/100 |
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) | Low | 9/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Ragweed (Ambrosia) | Low | 6/100 |
Local Environmental Conditions
Spencer Township has hazel and willow grow along the nearby water, quick to release pollen once it warms up. In Spencer Township, a nearby green space adds mown turf and ornamental trees to the local pollen mix. Nearby areas with similar land cover show a similar pollen mix.
Hazel and willow along the shoreline lead the season, cresting in February or March. By June, grass pollen hits its yearly high. Ragweed follows as the top allergen through October. Timing can vary by a week or two from year to year.
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Resource Hub
Sports venues in Spencer Township, Michigan 1 sports venue
Frequently Asked Questions About Pollen in Michigan
Is pollen high in Spencer Township, Michigan right now?
On 20 September 2026, overall pollen levels in Spencer Township, Michigan are high. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels
Will pollen levels change in Spencer Township, Michigan tomorrow?
On 21 September 2026, pollen conditions in Spencer Township, Michigan will be different from today, with ambrosia, grass continuing to decline
Is pollen expected to decrease in Spencer Township, Michigan 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 Spencer Township, Michigan?
On 20 September 2026, Grass is the dominant pollen source in Spencer Township, Michigan. ambrosia and artemisia are also present but at lower levels.
When is pollen season in Spencer Township, Michigan?
How often is the Spencer Township, Michigan pollen forecast updated?
The Spencer Township, Michigan pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Spencer Township, Michigan 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 Spencer Township, Michigan 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 Spencer Township, Michigan, 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).
