Opelousas pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Opelousas is low; grass and ragweed are low. Tomorrow (10 August 2026) levels are similar. Over the following five days grass and ragweed will increase. 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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The vegetation around Opelousas, on Cajun prairie country of south Louisiana, is dominated by live oak with Spanish moss and longleaf pine, with rice and crawfish farmland adding further seasonal pollen exposure. Local parks and open ground tend to see higher pollen counts than the denser urban core. Residents who spend time outdoors around Opelousas typically notice the shift as each season turns over.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    10/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    24/100

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 - 10 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    11/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    25/100

Air quality in Opelousas

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Frequently Asked Questions

Is pollen high in Opelousas right now?

On 9 August 2026, overall pollen levels in Opelousas are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels

Will pollen levels change in Opelousas tomorrow?

On 10 August 2026, pollen conditions in Opelousas will be similar to today, with grass at low levels, ambrosia at low levels

Is pollen expected to decrease in Opelousas this week?

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

Which pollen types are currently active in Opelousas?

On 9 August 2026, Grass is the dominant pollen source in Opelousas. ambrosia are also present but at lower levels. cypress and artemisia are not currently active.

When is pollen season in Opelousas?
Pollen season in Opelousas starts with oak and pine in January before cedar peaks during February. A grass pollen peak follows through March and April; ragweed and pigweed extend the season into October. Warm, humid Gulf Coast conditions stretch the spring pollen season longer than in most of the country, shaping conditions across the city.
How often is the Opelousas pollen forecast updated?

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

Does pollen in Opelousas 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 Opelousas 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 Opelousas, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Opelousas.

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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.