Carthage, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carthage, a town in Rush County, Indiana.
Tonight
46°F
Slight Chance Light Rain then Mostly Cloudy
A slight chance of rain before 7pm. Mostly cloudy. Low around 46, with temperatures rising to around 48 overnight. West southwest wind 3 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Carthage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Slight Chance Light Rain then Mostly Cloudy | 3 to 10 mph WSW | 18% |
| Thursday | 62°F | Partly Sunny | 6 to 13 mph SW | 0% |
| Thursday Night | 42°F | Mostly Cloudy | 2 to 7 mph W | 14% |
| Friday | 54°F | Slight Chance Light Rain | 3 to 12 mph NW | 15% |
| Friday Night | 33°F | Partly Cloudy | 3 to 9 mph NW | 12% |
| Saturday | 53°F | Mostly Sunny | 3 to 9 mph NW | 0% |
| Saturday Night | 29°F | Partly Cloudy | 1 to 5 mph NW | 0% |
| Sunday | 56°F | Sunny | 1 to 8 mph W | 0% |
| Sunday Night | 31°F | Mostly Clear | 1 to 6 mph W | 0% |
| Monday | 60°F | Sunny | 1 to 7 mph W | 0% |
| Monday Night | 35°F | Clear | 5 mph SW | 0% |
| Tuesday | 62°F | Sunny | 3 to 7 mph W | 1% |
| Tuesday Night | 35°F | Mostly Clear | 1 to 5 mph NW | 2% |
| Veterans Day | 61°F | Mostly Sunny | 1 to 5 mph NNW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Carthage (39.737, -85.571). Updated through the day.
Growing snapshot for Carthage
Last spring frost
Apr 19
First fall frost
Oct 22
Growing season
185 days
Hardiness zone
6a
More local growing data for Carthage: nearby ZIP 46115 weather · frost dates · planting calendar · Indiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Greenfield, In (10.8 mi from Carthage). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.