Harrisburg pollen forecast — River Mile 73 Campsite A neighborhood

Today (30 August) pollen in River Mile 73 Campsite A, Harrisburg is moderate; grass, mugwort, and ragweed are moderate. Tomorrow (31 August 2026) levels are similar - grass declining, mugwort declining, ragweed declining. Over the following five days grass, mugwort, and ragweed will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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

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Located within the neighborhood, this area has the riverbank shelters hazel and willow, two trees whose pollen travels readily on the breeze. Located just outside the immediate area, this area has this patch of forest is largely oak and birch, a pairing known for heavy spring pollen output. Grass and ornamental trees within the park boundary contribute modestly to grass and ragweed levels; this sits within the local area.

Today - 30 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Moderate

    28/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    27/100

  • Ragweed (Ambrosia):

    Moderate

    33/100

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 - 31 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    6/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    4/100

  • Ragweed (Ambrosia):

    Low

    10/100

Other Landmarks in Harrisburg

Frequently Asked Questions

Is pollen high in Harrisburg right now?

On 30 August 2026, overall pollen levels in Harrisburg are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia and grass remain at lower levels

Will pollen levels change in Harrisburg tomorrow?

On 31 August 2026, pollen conditions in Harrisburg will be different from today, with ambrosia, artemisia, grass continuing to decline

Is pollen expected to decrease in Harrisburg this week?

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

Which pollen types are currently active in Harrisburg?

On 30 August 2026, Ambrosia is the dominant pollen source in Harrisburg. artemisia and grass are also present but at lower levels. cypress are not currently active.

When is pollen season in Harrisburg?
Hazel and willow along the water get the season underway before other species, building through the tail end of winter into March. The nearby oak and birch stands take the lead as spring progresses, cresting around April and May in the year's sharpest tree-pollen spike. Grass pollen rises through late spring toward a June high point, and ragweed later takes the lead from mid-August through October.
How often is the Harrisburg pollen forecast updated?

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

Does pollen in Harrisburg 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 Harrisburg 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 Harrisburg, 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: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for River Mile 73 Campsite A, Harrisburg.

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

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.