Today | Weather | Wednesday, March 18, 2026

Weather in Lenexa, Kansas

03:10 AM
Now
Cloudy Night
36° F
Feels Like 28°
Precipitation 20 %
Wind 8 mph
Humidity 81 %
Today
Cloudy Weather
Day 68°
Night 48°
Precipitation 2 %
Wind 6 mph
UV Index (0 - 11+) 5

Lenexa Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)

Day

73°

Night

61°

Air Quality in Lenexa

NOW
50 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.09 µg/m³
PM10 3.96 µg/m³
O3 0.054 ppm
NO2 1.3 ppb
SO2 0.3 ppb
CO 0.14 ppm
NH3 4.42 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)
PM2.53.09 µg/m³
PM103.96 µg/m³
O3105.55 µg/m³
NO22.37 µg/m³
SO20.7 µg/m³
CO158.75 µg/m³
NH34.42 µg/m³
NO0 µg/m³