Today | Weather | Friday, September 11, 2026

Weather in Lenexa, Kansas

02:46 AM
Now
Foggy Weather
68° F
Feels Like 68°
Precipitation 0 %
Wind 6 mph
Humidity 92 %
Today
Cloudy Weather
Day 82°
Night 68°
Precipitation 3 %
Wind 7 mph
UV Index (0 - 11+) 6

Lenexa Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 11, 2025)

Day

88°

Night

63°

Air Quality in Lenexa

NOW
18 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.64 µg/m³
PM10 3.81 µg/m³
O3 0.020 ppm
NO2 1 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.45 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)
PM2.53.64 µg/m³
PM103.81 µg/m³
O338.9 µg/m³
NO21.84 µg/m³
SO20.22 µg/m³
CO127.95 µg/m³
NH30.45 µg/m³
NO0 µg/m³