Olathe, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olathe, a city in Johnson County, Kansas.
Overnight
76°F
Mostly Clear
Mostly clear, with a low around 76. South southwest wind around 9 mph, with gusts as high as 21 mph.
7-day forecast for Olathe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 76°F | Mostly Clear | 9 mph SSW | 0% |
| Saturday | 95°F | Sunny | 9 to 13 mph SSW | 2% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 10 mph WNW | 61% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 3 to 7 mph N | 47% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 8 mph NNE | 67% |
| Monday | 70°F | Showers And Thunderstorms Likely | 6 to 9 mph N | 67% |
| Monday Night | 56°F | Mostly Cloudy | 6 to 9 mph NNE | 7% |
| Tuesday | 68°F | Partly Sunny | 8 mph NNE | 3% |
| Tuesday Night | 52°F | Partly Cloudy | 7 mph NE | 1% |
| Wednesday | 70°F | Mostly Sunny | 6 mph ENE | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 5 mph E | 5% |
| Thursday | 74°F | Chance Rain Showers | 5 mph E | 25% |
| Thursday Night | 59°F | Slight Chance Rain Showers | 5 mph E | 21% |
| Friday | 74°F | Chance Rain Showers | 6 mph ESE | 26% |
Forecast source: National Weather Service (api.weather.gov) for Olathe (38.882, -94.820). Updated through the day.
Growing snapshot for Olathe
Last spring frost
Apr 8
First fall frost
Oct 29
Growing season
204 days
Hardiness zone
6b
More local growing data for Olathe: nearby ZIP 66062 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Bonner Springs
De Soto
Edgerton
Fairway
Gardner
Lake Quivira
Leawood
Lenexa
Merriam
Mission
Mission Hills
Overland Park
Prairie Village
Roeland Park
Shawnee
Westwood
Climate data from the nearest NOAA station, Olathe Johnson Co Exec Ap, Ks (2.6 mi from Olathe). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.