Charlton pollen forecast — Glen Grove neighborhood

On 30 August 2026, overall pollen levels in Charlton are moderate. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels

On 31 August 2026, pollen conditions in Charlton will be similar to today, with grass at moderate levels, ambrosia at moderate levels, artemisia at low levels

According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass and ambrosia pollen will increase, suggesting mixed conditions later in the week.

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

Water-edge hazel and willow are usually the first allergenic trees active here, arriving ahead of the rest of the season, cresting around late winter. Moving into early summer, grass pollen climbs to its seasonal high in June, before ragweed takes over as the dominant allergen from mid-August through October. Warmer or wetter years can pull these peaks a week or two earlier or later.

The Charlton 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 Charlton, 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.