Winthrop Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (6 October) pollen in Winthrop is none.
Pollen Tomorrow
Tomorrow (7 October 2026) levels are similar to today.
7-Day Trend
Over the next week grass, mugwort, ragweed, mold (alternaria), and mold (cladosporium) will remain stable.
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Pollen Risk
Today - 6 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) | None | 0/100 |
| Alternaria | None | 0/100 |
| Cladosporium | None | 0/100 |
Tomorrow - 7 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 | |
| Alternaria | None | 0/100 | |
| Cladosporium | None | 0/100 |
Local Environmental Conditions
The landscape around the heart of Winthrop is mostly open water. With much of the immediate area made up of open water, local pollen production is limited, though pollen can still drift in from surrounding land. Of the trees in the wider area, maple, poplar and juniper are the ones that matter most for allergies. Grasses, mugwort and plantain growing in the surroundings are the main non-tree sources of pollen.
Tree pollen peaks in mid-spring, when the weather warms to around 10°C and maple, poplar and juniper are in full flower. Grass pollen follows, peaking in early summer and easing off by early fall. Later, mugwort and plantain keep weed pollen in the air from midsummer into early fall. By late fall, as temperatures fall to around 5°C, pollen levels are low again.
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Resource Hub
Pollen forecast neighborhoods 5 neighborhoods
Sports venues in Winthrop 1 sports venue
Frequently Asked Questions About Pollen in Massachusetts
Is pollen high in Winthrop right now?
Currently, there is no significant pollen in Winthrop.
Will pollen levels change in Winthrop tomorrow?
On 7 October 2026, pollen conditions in Winthrop will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Winthrop this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Winthrop?
On 6 October 2026, there are no significant pollen types in Winthrop.
When is pollen season in Winthrop?
How often is the Winthrop pollen forecast updated?
The Winthrop pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Winthrop 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 Winthrop 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 Winthrop, 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).
