West Allis pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in West Allis is low; grass is low. Tomorrow (17 July 2026) levels are similar - grass increasing, ragweed at low levels. Over the following five days ragweed will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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West Allis's Milwaukee suburban Wisconsin setting features oak, maple, and elm as the main tree pollen sources, with exposure varying between the limited greener residential areas and the more built-up commercial and industrial corridors along Greenfield Avenue. The Honey Creek corridor provides locally significant green space, while the Milwaukee County Park system to the north provides additional tree pollen sources and the flat, densely developed urban landscape means limited local vegetation variation throughout.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    15/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    None

    0/100

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 - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    30/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    5/100

Air quality in West Allis

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Frequently Asked Questions

Is pollen high in West Allis right now?

On 16 July 2026, overall pollen levels in West Allis are low. Grass is the main contributor to airborne pollen

Will pollen levels change in West Allis tomorrow?

On 17 July 2026, pollen conditions in West Allis will be different from today, with ambrosia at low levels and grass increasing

Is pollen expected to decrease in West Allis this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while ambrosia pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in West Allis?

On 16 July 2026, Grass is the dominant pollen source in West Allis. oak, willow, alder, ambrosia, artemisia, birch, and cypress are not currently active.

When is pollen season in West Allis?
West Allis's Milwaukee suburban setting in Wisconsin produces a season opening in late March with elm and maple before birch and oak peak through May. Grass from surrounding Wisconsin farmland peaks through June and July before mugwort and nettle extend exposure into September. The Honey Creek corridor channels airflows, while the Lake Michigan proximity moderates temperatures and lake breezes can periodically suppress pollen dispersal.
How often is the West Allis pollen forecast updated?

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

Does pollen in West Allis 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 West Allis 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 West Allis, 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: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for West Allis.

For long term forecasts and maps, see the Airmine app

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