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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.

This Afternoon
80°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Southwest wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Winchester

WhenTempForecastWindPrecip
This Afternoon 80°F Showers And Thunderstorms Likely 6 mph SW 61%
Tonight 69°F Chance Showers And Thunderstorms 3 to 7 mph S 47%
Sunday 81°F Chance Showers And Thunderstorms 5 to 8 mph WNW 41%
Sunday Night 56°F Chance Showers And Thunderstorms 13 mph NE 63%
Monday 68°F Chance Showers And Thunderstorms 13 mph NE 52%
Monday Night 52°F Slight Chance Showers And Thunderstorms 13 mph NE 24%
Tuesday 68°F Chance Showers And Thunderstorms 10 to 14 mph NE 26%
Tuesday Night 54°F Chance Showers And Thunderstorms 8 to 14 mph NE 30%
Wednesday 68°F Chance Showers And Thunderstorms 9 mph NE 44%
Wednesday Night 54°F Chance Showers And Thunderstorms 6 to 10 mph NE 44%
Thursday 69°F Mostly Cloudy 8 mph NE 10%
Thursday Night 52°F Mostly Cloudy 5 to 8 mph NE 10%
Friday 71°F Partly Sunny 5 to 9 mph NNE 10%
Friday Night 51°F Partly Cloudy 3 to 9 mph NNE 3%

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.