Today | Weather | Thursday, July 2, 2026

Active Weather Warnings

Weather in West Allis, Wisconsin

10:01 PM

Now

79° F

Feels Like 82°

Precipitation 49 %

Wind 7 mph

Humidity 76 %

Today

Day 91°

Night 70°

Precipitation 99 %

Wind 7 mph

West Allis Weather Forecast Updated

Last updated on July 02, 2026 at 8:42 PM

Air Quality in West Allis

NOW

27 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 3.78 µg/m³

PM₁₀ 4.24 µg/m³

O₃ 0.030 ppm

NO₂ 2.2 ppb

SO₂ 0.5 ppb

CO 0.10 ppm

NH₃ 0.89 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 – 3.78 µg/m³

PM₁₀ – 4.24 µg/m³

O₃ – 58.25 µg/m³

NO₂ – 4.23 µg/m³

SO₂ – 1.35 µg/m³

CO – 115.15 µg/m³

NH₃ – 0.89 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast

Weather Alerts and Warnings for West Allis

Severe Future Possible

Severe Thunderstorm Watch

Severe Thunderstorm Watch issued July 2 at 8:09PM CDT until July 2 at 10:00PM CDT by NWS Milwaukee/Sullivan WI

Jul 2, 8:09 PM → Jul 2, 10:00 PM

SEVERE THUNDERSTORM WATCH 440 REMAINS VALID UNTIL 10 PM CDT THIS
EVENING FOR THE FOLLOWING AREAS

IN WISCONSIN THIS WATCH INCLUDES 8 COUNTIES

IN SOUTH CENTRAL WISCONSIN

GREEN LAFAYETTE ROCK

IN SOUTHEAST WISCONSIN

KENOSHA MILWAUKEE RACINE
WALWORTH WAUKESHA

THIS INCLUDES THE CITIES OF ARGYLE, BELMONT, BELOIT, BENTON,
BLANCHARDVILLE, BRODHEAD, BROOKFIELD, DARLINGTON, DELAVAN,
EAST TROY, ELKHORN, JANESVILLE, KENOSHA, LAKE GENEVA,
MENOMONEE FALLS, MILWAUKEE, MONROE, MUSKEGO, NEW BERLIN, RACINE,
SHULLSBURG, WAUKESHA, AND WHITEWATER.

Updated: Jul 2, 8:42 PM Source: NWS Alert

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued July 2 at 11:29AM CDT until July 2 at 10:00PM CDT by NWS Milwaukee/Sullivan WI

Jul 2, 11:29 AM → Jul 2, 10:00 PM

WHAT: Dangerously hot conditions with heat index values of 95 to
100.

WHERE: Portions of south central and southeast Wisconsin.

WHEN: Until 10 PM CDT this evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events.

+ Read More

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. Stay cool, stay hydrated, stay informed.

Updated: Jul 2, 6:58 PM Source: NWS Alert