Gettysburg pollen forecast — Gettysburg National Military Park neighborhood

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

On 17 July 2026, pollen conditions in Gettysburg 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, Grass is the dominant pollen source in Gettysburg. willow, alder, ambrosia, artemisia, birch, cypress, and oak are not currently active.

Gettysburg's regional pollen pattern holds at Gettysburg National Military Park, with cedar and elm first appearing in late February with oak following close behind through April. Grass pollen rises through May and June, and ragweed and mugwort extend the weed season into September. The mild mid-Atlantic climate advances the season compared to more northern East Coast cities, which shapes conditions at Gettysburg National Military Park much as it does elsewhere in Gettysburg.

The Gettysburg 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 Gettysburg, 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.