Knightstown, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Knightstown, a town in Henry County, Indiana.
This Afternoon
68°F
Slight Chance Light Rain
A slight chance of rain. Cloudy. High near 68, with temperatures falling to around 65 in the afternoon. West southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Knightstown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Slight Chance Light Rain | 12 mph WSW | 16% |
| Tonight | 46°F | Slight Chance Light Rain then Cloudy | 3 to 9 mph WSW | 18% |
| Thursday | 62°F | Partly Sunny | 6 to 13 mph SW | 1% |
| Thursday Night | 42°F | Slight Chance Light Rain | 2 to 7 mph W | 15% |
| Friday | 54°F | Slight Chance Light Rain | 3 to 10 mph NW | 15% |
| Friday Night | 34°F | Mostly Cloudy | 3 to 8 mph NW | 13% |
| Saturday | 53°F | Mostly Sunny | 3 to 7 mph NW | 0% |
| Saturday Night | 29°F | Partly Cloudy | 3 mph WNW | 0% |
| Sunday | 56°F | Sunny | 1 to 8 mph W | 0% |
| Sunday Night | 32°F | Mostly Clear | 1 to 5 mph W | 0% |
| Monday | 60°F | Sunny | 1 to 7 mph W | 0% |
| Monday Night | 36°F | Clear | 5 mph WSW | 0% |
| Tuesday | 62°F | Sunny | 6 mph W | 1% |
| Tuesday Night | 35°F | Mostly Clear | 0 to 3 mph NW | 2% |
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
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Mooreland
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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 Nov 5, 2026.