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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
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.