Boston pollen forecast — Church Green neighborhood
Pollen Today
Today (12 September) pollen in Church Green, Boston is low; grass and ragweed are low.
Pollen Tomorrow
Tomorrow (13 September 2026) grass increasing, ragweed increasing, mugwort at low levels.
7-Day Trend
Over the next week mugwort will increase; grass and ragweed will decrease.
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Air Quality
Air Quality Forecast for Boston AQI today AQI tomorrowPollen for Neighborhoods
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Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Pollen Risk
Today - 12 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) | Low | 12/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 22/100 |
Tomorrow - 13 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) | Moderate | 34/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 6/100 | |
| Ragweed (Ambrosia) | High | 55/100 |
Local Environmental Conditions
Water here is bordered by hazel and willow, both notable sources of wind-borne pollen; this sits in the surrounding area. Nearby, in the vicinity, oak and birch trees, with birch pollen especially potent during its brief spring window. The park's turf and planted trees form a small but steady source of grass and ragweed pollen; this sits a short distance from here.
Along the waterway, hazel and willow release pollen first, getting an early start, typically cresting between February and March. As spring advances, oak and birch in the nearby woodland become the dominant source, reaching maximum intensity across the April-May window. Through late spring, grass pollen climbs steadily toward its June peak, before ragweed pollen takes center stage across mid-August into October.
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Frequently Asked Questions About Pollen in Massachusetts
Is pollen high in Boston right now?
On 12 September 2026, overall pollen levels in Boston are low. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Boston tomorrow?
On 13 September 2026, pollen conditions in Boston will be different from today, with artemisia at low levels and ambrosia, grass increasing
Is pollen expected to decrease in Boston this week?
According to the five-day outlook, ambrosia and grass 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 Boston?
On 12 September 2026, Ambrosia is the dominant pollen source in Boston. grass are also present but at lower levels. artemisia are not currently active.
When is pollen season in Boston?
How often is the Boston pollen forecast updated?
The Boston pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Boston 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 Boston 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 Boston, 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 exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen 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).
