North Attleborough pollen forecast — Knollcrest Plat neighborhood
Pollen Today
Today (20 September) pollen in Knollcrest Plat, North Attleborough is low; grass and ragweed are low.
Pollen Tomorrow
Tomorrow (21 September 2026) grass increasing, ragweed increasing, mugwort at low levels.
7-Day Trend
Over the next week grass, mugwort, and ragweed will decrease.
Explore Forecasts
Air Quality
Pollen for Neighborhoods
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
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) | Low | 16/100 |
| 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 | 31/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 11/100 | |
| Ragweed (Ambrosia) | Moderate | 40/100 |
Local Environmental Conditions
Located close to this spot, this area has the nearest stream or river hosts hazel and willow, two of the most allergenic early-season trees. Woodland dominated by oak and birch, with birch a leading regional tree-pollen allergen; this sits close to this spot. A park whose lawns and ornamental trees quietly add to grass and ragweed pollen levels, a short distance from here.
Water-edge hazel and willow are usually the first allergenic trees active here, hitting its peak before most trees have even budded, around late winter into March. The woodland's oak and birch trees become the main pollen source by mid-spring, topping out in the April-to-May stretch. Grass pollen climbs toward a June peak, followed by ragweed's own peak stretch from mid-August into October.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Pollen forecast neighborhoods 20 neighborhoods
Sports venues in North Attleborough 1 sports venue
Frequently Asked Questions About Pollen in Massachusetts
Is pollen high in North Attleborough right now?
On 20 September 2026, overall pollen levels in North Attleborough are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in North Attleborough tomorrow?
On 21 September 2026, pollen conditions in North Attleborough will be different from today, with artemisia at low levels and grass, ambrosia increasing
Is pollen expected to decrease in North Attleborough this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in North Attleborough?
On 20 September 2026, Grass is the dominant pollen source in North Attleborough. ambrosia are also present but at lower levels. artemisia are not currently active.
When is pollen season in North Attleborough?
How often is the North Attleborough pollen forecast updated?
The North Attleborough pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in North Attleborough 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 North Attleborough 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 North Attleborough, 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).
