Today | Weather | Friday, September 11, 2026

Weather in Olathe, Kansas

02:02 AM
Now
Foggy Weather
68° F
Feels Like 70°
Precipitation 0 %
Wind 5 mph
Humidity 92 %
Today
Cloudy Weather
Day 84°
Night 70°
Precipitation 3 %
Wind 7 mph
UV Index (0 - 11+) 6

Olathe Weather Forecast Updated

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

Day

88°

Night

66°

Wind

5 mph

Precipitation

2 %

Air Quality in Olathe

NOW
19 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.87 µg/m³
PM10 4.07 µg/m³
O3 0.021 ppm
NO2 1.2 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.43 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)
PM2.53.87 µg/m³
PM104.07 µg/m³
O341.13 µg/m³
NO22.28 µg/m³
SO20.37 µg/m³
CO129.38 µg/m³
NH30.43 µg/m³
NO0 µg/m³