Harrisonburg pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Harrisonburg is medium; grass is medium; cypress is low. Tomorrow (26 June 2026) levels are similar. Over the following five days cypress and grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Harrisonburg's Shenandoah Valley setting features oak, maple, and hickory as the main tree pollen sources, with exposure varying between the forested Massanutten Mountain to the east and the Allegheny foothills to the west and the more open valley floor commercial and university areas. The enclosed valley creates distinct pollen concentration zones, while the Blue Ridge and Allegheny ridgeline forests contribute substantially more tree pollen than the open valley floor.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    16/100

  • Grass (Poaceae):

    Medium

    50/100

  • Willow (Salicaceae):

    None

    0/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    11/100

  • Grass (Poaceae):

    Medium

    44/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Harrisonburg right now?

On 25 June 2026, overall pollen levels in Harrisonburg are moderate. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in Harrisonburg tomorrow?

On 26 June 2026, pollen conditions in Harrisonburg will be similar to today, with cypress at low levels, grass at medium levels

Is pollen expected to decrease in Harrisonburg this week?

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

Which pollen types are currently active in Harrisonburg?

On 25 June 2026, Grass is the dominant pollen source in Harrisonburg. cypress are also present but at lower levels. hazel and willow are not currently active.

When is pollen season in Harrisonburg?
Harrisonburg's Shenandoah Valley setting produces a season opening in late February with cedar and elm before oak peaks through April. Grass from surrounding Virginia farmland peaks through May and June before mugwort and nettle extend exposure into September. The enclosed Shenandoah Valley concentrates pollen under calm conditions and can produce more intense spring exposure than more open Mid-Atlantic locations.
How often is the Harrisonburg pollen forecast updated?

The Harrisonburg pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Harrisonburg come from nearby or far away?

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.

Are pollen levels in Harrisonburg based on measurements or forecasts?

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 Harrisonburg, 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.

Want to see pollen forecasts for other cities in United States?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Harrisonburg.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.