Sierra Vista pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Sierra Vista is medium; ragweed is medium; grass is low. Tomorrow (10 August 2026) levels are similar - ragweed declining. 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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Sierra Vista's setting on the high desert grassland of the San Pedro Valley supports desert grassland, mesquite, and oak woodland in the nearby Huachuca foothills as the leading local vegetation, all factoring into the pollen count through the year. None of this is unusual for a town with Sierra Vista's particular mix of terrain and plant life. Allergy sufferers in Sierra Vista generally plan around this same recurring seasonal rhythm.

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

    24/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Medium

    35/100

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):

    Low

    9/100

Air quality in Sierra Vista

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Frequently Asked Questions

Is pollen high in Sierra Vista right now?

On 9 August 2026, overall pollen levels in Sierra Vista are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Sierra Vista tomorrow?

On 10 August 2026, pollen conditions in Sierra Vista will be different from today, with ambrosia continuing to decline

Is pollen expected to decrease in Sierra Vista 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 Sierra Vista?

On 9 August 2026, Ambrosia is the dominant pollen source in Sierra Vista. grass are also present but at lower levels. artemisia and cypress are not currently active.

When is pollen season in Sierra Vista?
In Sierra Vista, pollen season begins with palo verde and mesquite starting in January then mulberry follows, running 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 throughout the year.
How often is the Sierra Vista pollen forecast updated?

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

Does pollen in Sierra Vista 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 Sierra Vista 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 Sierra Vista, 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.

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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 Sierra Vista.

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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.