Pharr pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Pharr is high; ragweed is high; mugwort is moderate; grass is low. Tomorrow (31 August 2026) levels are similar - grass remains low, mugwort remains moderate, ragweed remains high, cypress at low levels. Over the following five days grass, mugwort, and ragweed will increase; cypress 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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Pharr's Lower Rio Grande Valley setting features mesquite, ash, and palm as the main tree pollen sources alongside distinctive subtropical South Texas vegetation. Exposure varies between the greener residential areas and the more built-up commercial corridors, while the flat Rio Grande Valley allows pollen to disperse widely and the subtropical climate supports abundant local vegetation contributing extended pollen production.

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):

    Low

    17/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    45/100

  • Ragweed (Ambrosia):

    High

    59/100

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):

    Low

    2/100

  • Grass (Poaceae):

    Low

    21/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Moderate

    49/100

  • Ragweed (Ambrosia):

    High

    62/100

Air quality in Pharr

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Frequently Asked Questions

Is pollen high in Pharr right now?

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

Will pollen levels change in Pharr tomorrow?

On 31 August 2026, pollen conditions in Pharr will be different from today, with grass at low levels, ambrosia at high levels, artemisia at moderate levels, cypress at low levels

Is pollen expected to decrease in Pharr this week?

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

Which pollen types are currently active in Pharr?

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

When is pollen season in Pharr?
Pharr's Lower Rio Grande Valley setting produces an extended subtropical pollen season opening in January with ash and mesquite before grass from surrounding South Texas farmland peaks through March and April. Mugwort and nettle extend exposure into autumn, while the flat, open Rio Grande plain allows pollen to disperse widely and the warm subtropical climate advances the season strongly.
How often is the Pharr pollen forecast updated?

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

Does pollen in Pharr 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 Pharr 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 Pharr, 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?

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Data provided by Airmine — Last update: 30 August 2026 at 08:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Pharr.

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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.