Cleveland pollen forecast — Warehouse District neighborhood

On 9 August 2026, overall pollen levels in Cleveland are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels

On 10 August 2026, pollen conditions in Cleveland will be similar to today, with ambrosia at medium levels, artemisia at medium levels, grass at low levels

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

On 9 August 2026, Ambrosia is the dominant pollen source in Cleveland. artemisia and grass are also present but at lower levels. cypress are not currently active.

The water-adjacent hazel and willow are early risers, usually the first pollen source active, peaking sometime in February or March. Late spring sees grass pollen build steadily toward a peak in June, handing off to ragweed, which peaks from mid-August through October. Actual peak timing can drift earlier or later depending on how the season's weather plays out.

The Cleveland 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 Cleveland, 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.