Olathe, KS Weather & Growing Conditions
Overnight
76°F
Mostly Clear
Mostly clear, with a low around 76. South wind around 10 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 76°F | Mostly Clear | 10 mph S | 0% |
| Saturday | 95°F | Sunny | 13 mph SSW | 3% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 10 mph WNW | 62% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 3 to 7 mph N | 46% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 8 mph NNE | 67% |
| Monday | 70°F | Showers And Thunderstorms Likely | 7 to 10 mph N | 67% |
| Monday Night | 56°F | Mostly Cloudy | 6 to 9 mph NNE | 6% |
| Tuesday | 68°F | Partly Sunny | 9 mph NNE | 3% |
| Tuesday Night | 52°F | Partly Cloudy | 3 to 7 mph NE | 1% |
| Wednesday | 71°F | Mostly Sunny | 6 mph ENE | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph E | 6% |
| Thursday | 74°F | Chance Rain Showers | 5 mph E | 25% |
| Thursday Night | 59°F | Slight Chance Rain Showers | 5 mph E | 21% |
| Friday | 75°F | Chance Rain Showers | 6 mph ESE | 26% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Olathe, KS
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
193 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 Ap, Ks (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.