Upper Arlington pollen forecast — Monticello neighborhood

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

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

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

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

Near the bank, hazel and willow lead the seasonal calendar, hitting its peak before most trees have even budded, around late winter into March. The woodland's oak and birch trees become the main pollen source by mid-spring, topping out in the April-to-May stretch. Grass pollen becomes the dominant allergen through late spring, peaking in June, before ragweed becomes the more dominant allergen from mid-August into October.

The Upper Arlington 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 Upper Arlington, 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.