Ann Arbor pollen forecast — University of Michigan Museum of Art neighborhood

On 16 July 2026, overall pollen levels in Ann Arbor are low. Grass is the main contributor to airborne pollen

On 17 July 2026, pollen conditions in Ann Arbor will be similar to today, with grass at low levels

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

On 16 July 2026, Grass is the dominant pollen source in Ann Arbor. ambrosia, artemisia, birch, cypress, oak, willow, and alder are not currently active.

The pollen season at University of Michigan Museum of Art mirrors Ann Arbor overall, starting with maple and elm in March then oak follows, running through April. Grass pollen builds through May and June, and a late-summer ragweed peak runs into September. Warm, humid summers in this part of the Midwest favor a pronounced late-season ragweed peak throughout the year.

The Ann Arbor 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 Ann Arbor, 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.