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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
Nearby towns & communities
Cadiz
Dunreith
Greensboro
Kennard
Lewisville
Middletown
Millville
Mooreland
Mount Summit
New Castle
New Lisbon
Shirley
Spiceland
Springport
Straughn
Sulphur Springs
Westwood
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.