Ouray pollen forecast - today, tomorrow and the week ahead

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

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

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

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

Ouray's tree pollen season begins with juniper and cottonwood from March before ash takes over and peaks through April. A grass pollen peak follows through May and June; sagebrush and ragweed extend the season into September. The dry mountain climate offers fewer rain breaks than more humid parts of the country, a defining feature of the local season.

The Ouray 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 Ouray, 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.