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Active Weather Warnings

Beach Hazards Statement

Weather in West Allis, Wisconsin

05:49 AM

Now

45° F

Feels Like 37°

Precipitation 2 %

Wind 9 mph

UV Index (0 - 11+) 0

Humidity 77 %

Today

Day 64°

Night 50°

Precipitation 13 %

Wind 12 mph

UV Index (0 - 11+) 4

West Allis Weather Forecast Updated

19 minutes ago

Last updated on May 22, 2026 at 5:29 AM

Air Quality in West Allis

NOW

32 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.36 µg/m³

PM₁₀ 5.26 µg/m³

O₃ 0.034 ppm

NO₂ 3.9 ppb

SO₂ 0.8 ppb

CO 0.13 ppm

NH₃ 1.68 µg/m³

NO 0 µg/m³

PM_2.5 – Fine particles <2.5μm

PM₁₀ – Inhalable particles <10μm

O₃ – Ozone

NO₂ – Nitrogen dioxide

SO₂ – Sulfur dioxide

CO – Carbon monoxide

NH₃ – Ammonia

NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)

PM_2.5 – 4.36 µg/m³

PM₁₀ – 5.26 µg/m³

O₃ – 67.5 µg/m³

NO₂ – 7.35 µg/m³

SO₂ – 2.21 µg/m³

CO – 145.98 µg/m³

NH₃ – 1.68 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for West Allis

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued May 22 at 5:04AM CDT until May 23 at 4:00PM CDT by NWS Milwaukee/Sullivan WI

May 22, 5:04 AM → May 23, 4:00 PM

WHAT: Life threatening waves of 3 to 5 feet and dangerous
currents are expected.

WHERE: Milwaukee, Racine and Kenosha Counties.

WHEN: Through Saturday afternoon.

IMPACTS: Dangerous swimming conditions are expected due to
high waves and onshore winds.

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Stay out of the water and away from dangerous areas like piers and breakwalls. Strong structural and longshore currents are expected. Rip currents are possible.

Updated: May 22, 5:29 AM Source: NWS Alert