Today | Weather | Wednesday, October 22, 2025

Weather in Waukesha, Wisconsin

06:14 AM
Now
Cloudy Weather
43° F
Feels Like 28°
Precipitation 43 %
Wind 20 mph
Humidity 85 %
Today
Rainy Weather
Day 46°
Night 37°
Precipitation 55 %
Wind 20 mph
UV Index (0 - 11+) 10

Warning: High UV Index Today: 10

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Waukesha Weather Forecast Updated

56 minutes ago
Last updated on

Air Quality in Waukesha

NOW
30 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.5 µg/m³
PM10 0.5 µg/m³
O3 0.032 ppm
NO2 0.6 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 1.37 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 considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.50.5 µg/m³
PM100.5 µg/m³
O362.76 µg/m³
NO21.16 µg/m³
SO20.24 µg/m³
CO103.87 µg/m³
NH31.37 µg/m³
NO0 µg/m³