Lenexa, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lenexa, a city in Johnson County, Kansas.
Tonight
77°F
Partly Cloudy
Partly cloudy, with a low around 77. Heat index values as high as 96. South wind 8 to 12 mph, with gusts as high as 20 mph.
7-day forecast for Lenexa
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 77°F | Partly Cloudy | 8 to 12 mph S | 3% |
| Saturday | 96°F | Mostly Sunny | 13 mph SSW | 6% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 9 mph W | 64% |
| Sunday | 82°F | Chance Showers And Thunderstorms | 3 to 7 mph N | 44% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 6 to 9 mph NNE | 58% |
| Monday | 72°F | Chance Showers And Thunderstorms | 7 to 10 mph NNE | 52% |
| Monday Night | 57°F | Mostly Cloudy | 6 to 9 mph NNE | 8% |
| Tuesday | 68°F | Partly Sunny | 9 mph NNE | 6% |
| Tuesday Night | 53°F | Partly Cloudy | 5 to 8 mph NE | 2% |
| Wednesday | 72°F | Mostly Sunny | 6 mph ENE | 1% |
| Wednesday Night | 56°F | Partly Cloudy | 5 mph ENE | 6% |
| Thursday | 73°F | Slight Chance Rain Showers | 5 mph E | 21% |
| Thursday Night | 59°F | Slight Chance Rain Showers | 5 mph E | 18% |
| Friday | 74°F | Slight Chance Rain Showers | 6 mph E | 21% |
Forecast source: National Weather Service (api.weather.gov) for Lenexa (38.965, -94.804). Updated through the day.
Growing snapshot for Lenexa
Last spring frost
Apr 10
First fall frost
Oct 29
Growing season
202 days
Hardiness zone
6b
More local growing data for Lenexa: nearby ZIP 66220 weather · frost dates · planting calendar · Kansas frost dates
Nearby towns & communities
Bonner Springs
De Soto
Edgerton
Fairway
Gardner
Lake Quivira
Leawood
Merriam
Mission
Mission Hills
Olathe
Overland Park
Prairie Village
Roeland Park
Shawnee
Westwood
Climate data from the nearest NOAA station, Olathe 3E, Ks (5.9 mi from Lenexa). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.