Olathe, KS Weather & Growing Conditions
This Afternoon
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 98. South southwest wind around 14 mph, with gusts as high as 22 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 14 mph SSW | 3% |
| Tonight | 68°F | Chance Showers And Thunderstorms | 5 to 9 mph W | 60% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 5 to 8 mph NNE | 50% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 to 9 mph NNE | 66% |
| Monday | 70°F | Showers And Thunderstorms Likely | 7 to 10 mph N | 66% |
| Monday Night | 55°F | Mostly Cloudy | 6 to 9 mph NNE | 7% |
| Tuesday | 67°F | Partly Sunny | 9 mph NNE | 3% |
| Tuesday Night | 51°F | Partly Cloudy | 7 mph NE | 1% |
| Wednesday | 70°F | Mostly Sunny | 6 mph ENE | 2% |
| Wednesday Night | 53°F | Partly Cloudy | 5 mph E | 5% |
| Thursday | 73°F | Slight Chance Rain Showers | 5 mph E | 24% |
| Thursday Night | 58°F | Slight Chance Rain Showers | 5 mph E | 21% |
| Friday | 74°F | Chance Rain Showers | 6 mph ESE | 26% |
| Friday Night | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph E | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Olathe, KS
Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
6b
Explore more for Olathe, KS: full frost dates · planting calendar · Kansas frost dates
Climate data from the nearest NOAA station, Olathe Johnson Co Exec Ap, Ks (2.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.