Clarksburg, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clarksburg, a community in Decatur County, Indiana.
Tonight
64°F
Partly Cloudy
Partly cloudy, with a low around 64. East wind 2 to 6 mph.
7-day forecast for Clarksburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Partly Cloudy | 2 to 6 mph E | 13% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 7 mph SSE | 55% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms | 6 mph S | 55% |
| Sunday | 86°F | Chance Showers And Thunderstorms | 5 mph WSW | 40% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 3 to 7 mph NNE | 49% |
| Monday | 74°F | Showers And Thunderstorms Likely | 8 mph NE | 59% |
| Monday Night | 57°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 50% |
| Tuesday | 71°F | Chance Showers And Thunderstorms | 8 mph NE | 44% |
| Tuesday Night | 57°F | Chance Showers And Thunderstorms | 3 to 9 mph NNE | 29% |
| Wednesday | 70°F | Mostly Cloudy | 7 mph NNE | 14% |
| Wednesday Night | 56°F | Mostly Cloudy | 3 to 7 mph NNE | 12% |
| Thursday | 71°F | Partly Sunny | 6 mph N | 7% |
| Thursday Night | 55°F | Mostly Cloudy | 6 mph NNE | 7% |
| Friday | 71°F | Mostly Sunny | 6 mph NNE | 6% |
Forecast source: National Weather Service (api.weather.gov) for Clarksburg (39.435, -85.349). Updated through the day.
Growing snapshot for Clarksburg
Last spring frost
Apr 15
First fall frost
Oct 26
Growing season
194 days
Hardiness zone
6a
More local growing data for Clarksburg: nearby ZIP 47225 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Adams
Andersonville
Burney
Greensburg
Lake Santee
Letts
Milford
Millhousen
New Point
Sardinia
St. Omer
St. Paul
Westport
Climate data from the nearest NOAA station, Greensburg, In (9.8 mi from Clarksburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.