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Knightstown, IN Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Knightstown, a town in Henry County, Indiana.

Today
86°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between noon and 3pm, then showers and thunderstorms likely between 3pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 86, with temperatures falling to around 82 in the afternoon. South southwest wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for Knightstown

WhenTempForecastWindPrecip
Today 86°F Mostly Cloudy then Chance Showers And Thunderstorms 7 mph SSW 65%
Tonight 67°F Chance Showers And Thunderstorms then Mostly Cloudy 5 mph S 29%
Sunday 84°F Partly Sunny then Chance Showers And Thunderstorms 3 to 7 mph W 39%
Sunday Night 58°F Showers And Thunderstorms Likely 10 mph NE 61%
Monday 70°F Showers And Thunderstorms Likely 9 to 13 mph NE 60%
Monday Night 53°F Chance Showers And Thunderstorms 8 to 13 mph NE 54%
Tuesday 70°F Chance Showers And Thunderstorms 12 mph NE 25%
Tuesday Night 55°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 5 to 13 mph NE 34%
Wednesday 70°F Slight Chance Rain Showers 5 to 8 mph NNE 23%
Wednesday Night 54°F Slight Chance Rain Showers then Mostly Cloudy 3 to 8 mph NNE 21%
Thursday 71°F Mostly Cloudy 5 to 8 mph NNE 5%
Thursday Night 54°F Mostly Cloudy 3 to 8 mph NNE 6%
Friday 72°F Mostly Sunny 3 to 8 mph NNE 5%
Friday Night 52°F Partly Cloudy 3 to 7 mph NE 5%

Forecast source: National Weather Service (api.weather.gov) for Knightstown (39.796, -85.531). Updated through the day.

Growing snapshot for Knightstown

Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
173 days
Hardiness zone
6a

More local growing data for Knightstown: nearby ZIP 46148 weather · frost dates · planting calendar · Indiana frost dates

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Climate data from the nearest NOAA station, New Castle 3 Sw, In (9 mi from Knightstown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.