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Winchester, KS Weather & Growing Conditions

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

This Afternoon
91°F
Sunny
Sunny, with a high near 91. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

7-day forecast for Winchester

WhenTempForecastWindPrecip
This Afternoon 91°F Sunny 5 to 10 mph SW 6%
Tonight 66°F Chance Showers And Thunderstorms 5 mph W 71%
Sunday 77°F Chance Showers And Thunderstorms 5 mph N 35%
Sunday Night 61°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 5 mph N 51%
Monday 66°F Chance Rain Showers 5 to 10 mph N 51%
Monday Night 53°F Mostly Cloudy 5 to 10 mph NE 9%
Tuesday 64°F Mostly Cloudy 5 mph NE 3%
Tuesday Night 49°F Partly Cloudy 5 mph NE 2%
Wednesday 68°F Mostly Sunny 5 mph E 1%
Wednesday Night 53°F Partly Cloudy 0 to 5 mph E 10%
Thursday 71°F Chance Rain Showers 0 to 5 mph E 27%
Thursday Night 57°F Slight Chance Rain Showers 5 mph E 24%
Friday 71°F Chance Rain Showers 5 mph E 26%
Friday Night 58°F Mostly Cloudy then Slight Chance Showers And Thunderstorms 5 mph E 16%

Forecast source: National Weather Service (api.weather.gov) for Winchester (39.323, -95.269). Updated through the day.

Growing snapshot for Winchester

Last spring frost
Apr 16
First fall frost
Oct 22
Growing season
188 days
Hardiness zone
6b

More local growing data for Winchester: nearby ZIP 66097 weather · frost dates · planting calendar · Kansas frost dates

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Climate data from the nearest NOAA station, Oskaloosa 4 Ne, Ks (6.2 mi from Winchester). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.