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Lenexa, KS Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Lenexa, a city in Johnson County, Kansas.

Tonight
48°F
Cloudy
Cloudy, with a low around 48. West northwest wind 2 to 12 mph.

7-day forecast for Lenexa

WhenTempForecastWindPrecip
Tonight 48°F Cloudy 2 to 12 mph WNW 10%
Wednesday 57°F Partly Sunny 8 to 13 mph W 0%
Wednesday Night 43°F Mostly Clear 7 mph W 0%
Thursday 56°F Mostly Sunny 6 to 9 mph WNW 0%
Thursday Night 45°F Mostly Cloudy 7 mph NNW 5%
Friday 54°F Partly Sunny 5 to 8 mph N 3%
Friday Night 37°F Mostly Cloudy 3 mph NE 0%
Saturday 55°F Mostly Sunny 3 mph S 0%
Saturday Night 39°F Mostly Clear 2 mph SW 0%
Sunday 61°F Sunny 5 mph W 0%
Sunday Night 41°F Clear 5 mph SW 0%
Monday 67°F Sunny 5 to 9 mph SSW 0%
Monday Night 45°F Mostly Clear 6 mph SW 0%
Tuesday 68°F Sunny 6 mph WNW 0%

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

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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 Nov 4, 2026.