Joshua Tree pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Joshua Tree is moderate; ragweed is moderate; grass and mugwort are low. Tomorrow (31 August 2026) levels are similar. Over the following five days grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Joshua Tree National Park is a high Mojave Desert with namesake Joshua trees and cholla cactus. Pollen levels are generally low, but spring wildflower blooms after wet winters release bursts of flower pollen in February and March.

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

    19/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    10/100

  • Ragweed (Ambrosia):

    Moderate

    31/100

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

    22/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    13/100

  • Ragweed (Ambrosia):

    Moderate

    35/100

Air quality in Joshua Tree

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Frequently Asked Questions

Is pollen high in Joshua Tree right now?

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

Will pollen levels change in Joshua Tree tomorrow?

On 31 August 2026, pollen conditions in Joshua Tree will be similar to today, with ambrosia at moderate levels, artemisia at low levels, grass at low levels

Is pollen expected to decrease in Joshua Tree 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 Joshua Tree?

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

When is pollen season in Joshua Tree?
Joshua Tree National Park's pollen season lines up with the rest of Joshua Tree, starting with olive and acacia in January with eucalyptus joining in and continuing through February. Grass pollen then peaks through March and April, and light weed pollen carries into September. Mild year-round temperatures push the pollen calendar earlier than in most of the country throughout the year.
How often is the Joshua Tree pollen forecast updated?

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

Does pollen in Joshua Tree 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 Joshua Tree 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 Joshua Tree, 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: 30 August 2026 at 08:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Joshua Tree.

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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.