Denver pollen forecast — RiNo Arts District neighborhood

On 16 July 2026, overall pollen levels in Denver are low. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels

On 17 July 2026, pollen conditions in Denver will be different from today, with ambrosia at low levels, oak at low levels and grass increasing

According to the five-day outlook, ambrosia, grass, and oak pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

On 16 July 2026, Ambrosia is the dominant pollen source in Denver. grass are also present but at lower levels. willow, alder, artemisia, birch, cypress, and oak are not currently active.

RiNo Arts District sees the same pollen timeline as the rest of Denver, beginning with juniper and cottonwood in March then ash builds through April. Grass pollen rises through May and June, and grass pollen lingers into early September before tapering off. Low humidity and high elevation mean pollen disperses easily once released, a pattern felt across this part of Denver.

The Denver 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 Denver, 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.