Washington pollen forecast — Adams Morgan neighborhood

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

On 17 July 2026, pollen conditions in Washington will be similar to today with no significant pollen expected.

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

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

Like the rest of Washington, Adams Morgan experiences a season that opens with cedar and elm from late February with oak joining in and continuing through April. Grass pollen then peaks through May and June, and a late-summer weed pollen tail runs into September. The mild mid-Atlantic climate advances the season compared to more northern East Coast cities throughout the year.

The Washington 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 Washington, 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.