Mississauga pollen forecast — Applewood Hills neighborhood

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

On 31 August 2026, pollen conditions in Mississauga will be similar to today, with ambrosia at high levels, grass at low levels

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

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

Hazel and willow near the water open the pollen calendar early, arriving ahead of the rest of the season, cresting around late winter. Further into spring, the area's oak and birch stands drive the pollen count, topping out in the April-to-May stretch. Grass pollen builds through late spring and peaks in June, then gives way to ragweed, which drives the season's second major surge from mid-August into October.

The Mississauga 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 Mississauga, 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.