Today | Weather | Sunday, November 1, 2026

Weather in West Allis, Wisconsin

09:43 PM
Now
Cloudy Weather
54° F
Feels Like 54°
Precipitation 12 %
Wind 5 mph
Humidity 89 %
Today
Cloudy Weather
Day 64°
Night 54°
Precipitation 16 %
Wind 6 mph

West Allis Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 1, 2025)
Rainy Weather

Day

48°

Night

32°

Wind

7 mph

UV Index

1

Precipitation

92 %

Air Quality in West Allis

NOW
52 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 12.87 µg/m³
PM10 14.79 µg/m³
O3 0.029 ppm
NO2 8.1 ppb
SO2 0.6 ppb
CO 0.20 ppm
NH3 0.35 µg/m³
NO 0 µg/m³
PM2.5 – 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 12.87 µg/m³
PM10 – 14.79 µg/m³
O3 – 57.8 µg/m³
NO2 – 15.15 µg/m³
SO2 – 1.68 µg/m³
CO – 228.09 µg/m³
NH3 – 0.35 µg/m³
NO – 0 µg/m³