Arvada pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Arvada is medium; grass and ragweed are medium; mugwort is low. Tomorrow (10 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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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Arvada's parks, including Ralston Creek Park and the Van Bibber Creek corridor, feature cottonwood, ash, and oak as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Colorado high plains contribute substantial grass pollen, while the Rocky Mountain foothills to the west add pine and grass pollen under prevailing downslope easterly winds.

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):

    Medium

    49/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    16/100

  • Ragweed (Ambrosia):

    Medium

    40/100

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):

    Medium

    50/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    17/100

  • Ragweed (Ambrosia):

    Medium

    42/100

Air quality in Arvada

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Frequently Asked Questions

Is pollen high in Arvada right now?

On 9 August 2026, overall pollen levels in Arvada are moderate. Grass is the main contributor to airborne pollen, while ambrosia and artemisia remain at lower levels

Will pollen levels change in Arvada tomorrow?

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

Is pollen expected to decrease in Arvada 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 Arvada?

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

When is pollen season in Arvada?
Arvada's pollen season opens with elm and cottonwood from late February, followed by oak and ash through April and May. Grass pollen peaks through June and July. The Front Range setting and Van Bibber Creek valley channel prevailing winds, while surrounding Colorado high plains contribute substantial grass pollen. The Rocky Mountain foothills to the west add pine and grass pollen under prevailing downslope easterly winds throughout the season.
How often is the Arvada pollen forecast updated?

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

Does pollen in Arvada 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 Arvada 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 Arvada, 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 Arvada.

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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.