Winchester, KS Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winchester, a city in Jefferson County, Kansas.
Tonight
44°F
Slight Chance Drizzle then Cloudy
A slight chance of drizzle before 7pm. Cloudy, with a low around 44. Northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
7-day forecast for Winchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 44°F | Slight Chance Drizzle then Cloudy | 10 to 15 mph NW | 15% |
| Wednesday | 55°F | Partly Sunny | 5 to 15 mph W | 2% |
| Wednesday Night | 38°F | Mostly Clear | 5 mph W | 3% |
| Thursday | 55°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph NW | 16% |
| Thursday Night | 38°F | Mostly Cloudy | 5 mph NW | 1% |
| Friday | 54°F | Partly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 36°F | Mostly Cloudy | 0 mph | 0% |
| Saturday | 58°F | Mostly Sunny | 0 mph | 3% |
| Saturday Night | 37°F | Mostly Clear | 0 to 5 mph W | 6% |
| Sunday | 63°F | Sunny | 0 to 5 mph W | 3% |
| Sunday Night | 39°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Monday | 67°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph W | 0% |
| Tuesday | 67°F | Sunny | 5 mph NE | 0% |
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 Nov 4, 2026.