New Tecumseth pollen forecast - today, tomorrow and the week ahead

On 26 August 2026, overall pollen levels in New Tecumseth are high. Ambrosia is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

On 27 August 2026, pollen conditions in New Tecumseth will be different from today, with artemisia at low levels, ambrosia at high levels and grass continuing to decline

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

On 26 August 2026, Ambrosia is the dominant pollen source in New Tecumseth. grass and artemisia are also present but at lower levels. cypress are not currently active.

Along the waterway, hazel and willow release pollen first, leading off the pollen calendar, with a peak generally falling in late winter. The nearby oak and birch stands take the lead as spring progresses, typically the year's sharpest tree-pollen spell, centered on April and May. By late spring, grass pollen is climbing steadily toward a June high point, then yields to ragweed, the dominant late-summer and fall allergen through October.

The New Tecumseth 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 New Tecumseth, 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.