Tucson pollen forecast — Mercado District neighborhood

Today (9 August) pollen in Mercado District, Tucson is low; ragweed is low. Tomorrow (10 August 2026) levels are similar. Over the following five days ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Mercado District is a sonoran Desert city with saguaro, palo verde, and desert broom. Desert broom's white fluffy seeds and pollen fill the air in fall — one of Tucson's most notorious allergens. Palo verde blooms intensely in April.

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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    15/100

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):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    None

    0/100

Other Landmarks in Tucson

Arizona-Sonora Desert Museum Armory Park Barrio Viejo Dunbar Spring El Presidio Fourth Avenue Menlo Park Tucson Mercado District Reid Park Sabino Canyon Saguaro National Park Sam Hughes University of Arizona Mall

Sports venues in Tucson

Ventana Canyon Golf Club

Frequently Asked Questions

Is pollen high in Tucson right now?

On 9 August 2026, overall pollen levels in Tucson are low. Ambrosia is the main contributor to airborne pollen

Will pollen levels change in Tucson tomorrow?

On 10 August 2026, pollen conditions in Tucson will be similar to today with no significant pollen expected.

Is pollen expected to decrease in Tucson this week?

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

Which pollen types are currently active in Tucson?

On 9 August 2026, Ambrosia is the dominant pollen source in Tucson. artemisia, cypress, and grass are not currently active.

When is pollen season in Tucson?
Mercado District tracks Tucson's broader pollen pattern, with palo verde and mesquite appearing from January with mulberry joining in and continuing through February. Grass pollen then peaks through March and April, and a second grass and weed peak follows the summer monsoon rains from July through September. The hot desert climate concentrates the main spring season, with little rainfall to interrupt pollen release.
How often is the Tucson pollen forecast updated?

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

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

This page provides the latest public pollen forecast for Mercado District, Tucson.

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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.