Knightstown, IN Weather & Growing Conditions
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 wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Mostly Cloudy then Chance Showers And Thunderstorms | 7 mph S | 65% |
| Tonight | 67°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph SSE | 29% |
| Sunday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph W | 37% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely | 10 mph NNE | 60% |
| Monday | 69°F | Showers And Thunderstorms Likely | 13 mph ENE | 60% |
| Monday Night | 53°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 53% |
| Tuesday | 69°F | Slight Chance Showers And Thunderstorms | 12 mph NE | 24% |
| Tuesday Night | 55°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 12 mph NE | 33% |
| Wednesday | 69°F | Slight Chance Rain Showers | 5 to 8 mph NNE | 24% |
| Wednesday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 8 mph NNE | 22% |
| Thursday | 70°F | Mostly Cloudy | 5 to 8 mph NNE | 6% |
| Thursday Night | 53°F | Mostly Cloudy | 3 to 8 mph NNE | 6% |
| Friday | 72°F | Mostly Sunny | 5 to 8 mph NNE | 5% |
| Friday Night | 51°F | Partly Cloudy | 3 to 8 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knightstown, IN
Last spring frost
Apr 27
First fall frost
Oct 17
Growing season
173 days
Hardiness zone
6a
Explore more for Knightstown, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, New Castle 3 Sw, In (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.