Hadley pollen forecast — Hadley Center Historic District neighborhood
Pollen Today
Today (20 September) pollen in Hadley Center Historic District, Hadley is low; ragweed is low.
Pollen Tomorrow
Tomorrow (21 September 2026) ragweed increasing, grass at moderate levels, mugwort at low levels.
7-Day Trend
Over the next week grass, mugwort, and ragweed will decrease.
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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) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Ragweed (Ambrosia) | Low | 24/100 |
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) | Moderate | 30/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 16/100 | |
| Ragweed (Ambrosia) | High | 53/100 |
Local Environmental Conditions
Located just outside the immediate area, this area has hazel and willow thrive along the damp bank, both prolific early wind-pollinators. Nearby, within the neighborhood, a wooded stretch of oak and birch, with birch responsible for some of the sharpest spring counts. The general pattern described here holds fairly steady across nearby areas with similar land cover.
Along the waterway, hazel and willow release pollen first, peaking in late winter through March. Further into spring, the area's oak and birch stands drive the pollen count, reaching maximum intensity across the April-May window. Grass pollen becomes the dominant allergen through late spring, peaking in June, and then ragweed picks up the slack, running from mid-August through October.
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Frequently Asked Questions About Pollen in Massachusetts
Is pollen high in Hadley right now?
On 20 September 2026, overall pollen levels in Hadley are low. Ambrosia is the main contributor to airborne pollen
Will pollen levels change in Hadley tomorrow?
On 21 September 2026, pollen conditions in Hadley will be different from today, with artemisia at low levels, grass at moderate levels and ambrosia increasing
Is pollen expected to decrease in Hadley this week?
According to the five-day outlook, ambrosia, artemisia, and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Hadley?
On 20 September 2026, Ambrosia is the dominant pollen source in Hadley. artemisia and grass are not currently active.
When is pollen season in Hadley?
How often is the Hadley pollen forecast updated?
The Hadley pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hadley 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 Hadley 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 Hadley, 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).
