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Active Weather Warnings

Beach Hazards Statement

Weather in West Allis, Wisconsin

01:52 PM

Now

61° F

Feels Like 57°

Precipitation 4 %

Wind 12 mph

UV Index (0 - 11+) 2

Humidity 77 %

Today

Day 61°

Night 52°

Precipitation 19 %

Wind 12 mph

UV Index (0 - 11+) 2

West Allis Weather Forecast Updated

Last updated on September 21, 2026 at 12:18 PM

Air Quality in West Allis

NOW

23 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 1.11 µg/m³

PM₁₀ 1.41 µg/m³

O₃ 0.025 ppm

NO₂ 2.7 ppb

SO₂ 0.5 ppb

CO 0.16 ppm

NH₃ 0.41 µg/m³

NO 0.74 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 – 1.11 µg/m³

PM₁₀ – 1.41 µg/m³

O₃ – 48.55 µg/m³

NO₂ – 5.02 µg/m³

SO₂ – 1.43 µg/m³

CO – 183.71 µg/m³

NH₃ – 0.41 µg/m³

NO – 0.74 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for West Allis

Moderate Expected Likely

Beach Hazards Statement

Beach Hazards Statement issued September 21 at 3:34AM CDT until September 23 at 7:00PM CDT by NWS Milwaukee/Sullivan WI

Sep 21, 3:34 AM → Sep 23, 7:00 PM

WHAT: Life threatening waves of 5 to 8 feet and dangerous
currents are expected.

WHERE: Sheboygan, Ozaukee, Milwaukee, Racine and Kenosha
Counties.

WHEN: Through Wednesday evening.

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

+ Read More

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: Sep 21, 12:18 PM Source: NWS Alert