Thorntown, IN Weather & Growing Conditions
Overnight
61°F
Rain Showers
Rain showers. Cloudy. Low around 61, with temperatures rising to around 63 overnight. South wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Rain Showers | 18 mph S | 89% |
| Wednesday | 67°F | Chance Rain Showers | 13 to 17 mph SW | 62% |
| Wednesday Night | 47°F | Mostly Cloudy | 12 mph WSW | 3% |
| Thursday | 61°F | Partly Sunny | 12 to 17 mph SW | 9% |
| Thursday Night | 43°F | Mostly Cloudy then Isolated Rain Showers | 3 to 10 mph W | 18% |
| Friday | 54°F | Isolated Rain Showers | 5 to 13 mph NW | 18% |
| Friday Night | 34°F | Partly Cloudy | 6 to 12 mph NW | 8% |
| Saturday | 52°F | Mostly Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 30°F | Partly Cloudy | 1 to 5 mph WNW | 1% |
| Sunday | 57°F | Sunny | 2 to 10 mph W | 3% |
| Sunday Night | 31°F | Mostly Clear | 2 to 7 mph W | 3% |
| Monday | 61°F | Sunny | 2 to 9 mph WSW | 2% |
| Monday Night | 36°F | Mostly Clear | 6 mph SW | 1% |
| Tuesday | 65°F | Sunny | 3 to 7 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Thorntown, IN
Last spring frost
Apr 27
First fall frost
Oct 12
Growing season
167 days
Hardiness zone
6a
Explore more for Thorntown, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Crawfordsville 6 Se, In (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.