Lacey pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Lacey is medium; ragweed is medium; mugwort is low. Tomorrow (10 August 2026) levels are similar - mugwort increasing, ragweed increasing, grass at low levels. 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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Lacey's Thurston County Washington Puget Sound setting features Douglas fir, red alder, and bigleaf maple as the main tree pollen sources, with exposure varying between the extensively forested residential areas and the more built-up commercial corridors along Pacific Avenue. The Woodland Creek and McLane Creek corridors provide locally significant green space, while the South Puget Sound's slightly more continental position creates modestly less rainfall than northern Puget Sound cities, resulting in somewhat less pollen interruption.

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):

    Low

    2/100

  • Ragweed (Ambrosia):

    Medium

    28/100

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

    17/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    29/100

  • Ragweed (Ambrosia):

    High

    56/100

Air quality in Lacey

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Frequently Asked Questions

Is pollen high in Lacey right now?

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

Will pollen levels change in Lacey tomorrow?

On 10 August 2026, pollen conditions in Lacey will be different from today, with grass at low levels and ambrosia, artemisia increasing

Is pollen expected to decrease in Lacey 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 Lacey?

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

When is pollen season in Lacey?
Lacey's Puget Sound suburban setting in Washington produces a season opening in January with alder before birch peaks through March and April. Grass from surrounding Pacific Northwest land peaks through June and July before mugwort and nettle extend exposure into September. The wet Pacific oceanic climate provides very frequent rainfall interruptions throughout, while the South Puget Sound position means slightly more continental conditions than in northern Puget Sound cities.
How often is the Lacey pollen forecast updated?

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

Does pollen in Lacey 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 Lacey 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 Lacey, 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 Lacey.

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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.