Oakville pollen forecast — Holton Heights neighborhood

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

On 31 August 2026, pollen conditions in Oakville will be different from today, with artemisia at low levels, grass at low levels and ambrosia increasing

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

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

The water-adjacent hazel and willow are early risers, climbing steadily from late winter into March. Further into spring, the area's oak and birch stands drive the pollen count, generally peaking somewhere between April and May. Through late spring, grass pollen climbs steadily toward its June peak, with ragweed climbing to its own high point from mid-August through October.

The Oakville 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 Oakville, 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.