Stoneham pollen forecast — Central Square Historic District neighborhood

On 30 August 2026, overall pollen levels in Stoneham are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

On 31 August 2026, pollen conditions in Stoneham will be different from today, with grass at moderate levels, ambrosia at high levels and artemisia continuing to decline

According to the five-day outlook, grass, ambrosia, and artemisia pollen levels will increase later in the week.

On 30 August 2026, Ambrosia is the dominant pollen source in Stoneham. grass and artemisia are also present but at lower levels. cypress are not currently active.

Hazel and willow near the water open the pollen calendar early, leading off the pollen calendar, with a peak generally falling in late winter. As spring turns to summer, grass pollen rises toward its June high, and ragweed later takes the lead from mid-August through October. Neighboring parts of the county typically see this same sequence with only minor timing shifts.

The Stoneham pollen forecast is updated four times daily. See the timestamp below for the most recent update.

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.

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 Stoneham, 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.