Olathe, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Olathe, a city in Johnson County, Kansas.
Tonight
47°F
Cloudy
Cloudy, with a low around 47. West northwest wind around 13 mph, with gusts as high as 23 mph.
7-day forecast for Olathe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Cloudy | 13 mph WNW | 10% |
| Wednesday | 57°F | Partly Sunny | 7 to 13 mph W | 3% |
| Wednesday Night | 42°F | Mostly Clear | 6 mph W | 5% |
| Thursday | 57°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph NW | 15% |
| Thursday Night | 42°F | Mostly Cloudy | 6 mph NNW | 2% |
| Friday | 56°F | Partly Sunny | 7 mph N | 3% |
| Friday Night | 39°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Saturday | 59°F | Partly Sunny | 3 mph W | 2% |
| Saturday Night | 40°F | Mostly Clear | 3 mph WSW | 6% |
| Sunday | 64°F | Sunny | 5 mph W | 4% |
| Sunday Night | 42°F | Mostly Clear | 6 mph SW | 0% |
| Monday | 67°F | Sunny | 6 to 9 mph SSW | 0% |
| Monday Night | 45°F | Mostly Clear | 6 mph SW | 0% |
| Tuesday | 68°F | Sunny | 6 mph S | 0% |
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 Nov 4, 2026.