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Winchester, IN Weather & Growing Conditions

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

Today
82°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A slight chance of showers and thunderstorms between 11am and noon, then showers and thunderstorms likely. Mostly cloudy. High near 82, with temperatures falling to around 78 in the afternoon. South southeast wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Winchester

WhenTempForecastWindPrecip
Today 82°F Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 8 mph SSE 71%
Tonight 66°F Chance Showers And Thunderstorms 7 mph S 50%
Sunday 80°F Chance Showers And Thunderstorms 5 to 9 mph WNW 66%
Sunday Night 56°F Showers And Thunderstorms Likely 13 mph NE 73%
Monday 67°F Rain Showers Likely 14 mph NE 55%
Monday Night 52°F Chance Rain Showers 10 to 16 mph NE 47%
Tuesday 67°F Slight Chance Rain Showers 14 mph NE 19%
Tuesday Night 53°F Chance Showers And Thunderstorms 7 to 14 mph NE 30%
Wednesday 67°F Chance Rain Showers 9 mph NE 32%
Wednesday Night 53°F Chance Rain Showers 6 to 9 mph NNE 32%
Thursday 68°F Mostly Cloudy 6 to 9 mph NNE 10%
Thursday Night 52°F Mostly Cloudy 5 to 9 mph NNE 9%
Friday 70°F Mostly Sunny 6 to 10 mph NNE 6%
Friday Night 50°F Partly Cloudy 5 to 10 mph NE 6%

Forecast source: National Weather Service (api.weather.gov) for Winchester (40.172, -84.977). Updated through the day.

Growing snapshot for Winchester

Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
183 days
Hardiness zone
6a

More local growing data for Winchester: nearby ZIP 47394 weather · frost dates · planting calendar · Indiana frost dates

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Climate data from the nearest NOAA station, Winchester Airport 3 E, In (3.5 mi from Winchester). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.