Carthage, IN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carthage, a town in Rush County, Indiana.
Today
83°F
Sunny
Sunny. High near 83, with temperatures falling to around 81 in the afternoon. East northeast wind around 2 mph.
7-day forecast for Carthage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 2 mph ENE | 0% |
| Tonight | 61°F | Clear | 1 mph NE | 0% |
| Wednesday | 85°F | Sunny | 0 to 3 mph N | 0% |
| Wednesday Night | 65°F | Mostly Clear | 2 mph S | 4% |
| Thursday | 85°F | Partly Sunny then Scattered Showers And Thunderstorms | 2 to 6 mph SSW | 45% |
| Thursday Night | 66°F | Scattered Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SSW | 57% |
| Friday | 83°F | Chance Showers And Thunderstorms | 2 to 6 mph SSW | 57% |
| Friday Night | 66°F | Chance Showers And Thunderstorms | 1 to 5 mph SW | 56% |
| Saturday | 84°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph SW | 23% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SSW | 23% |
| Sunday | 87°F | Mostly Sunny | 3 to 8 mph SW | 14% |
| Sunday Night | 69°F | Partly Cloudy | 6 mph SW | 14% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 to 9 mph SW | 23% |
| Monday Night | 69°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph SW | 30% |
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 Aug 4, 2026.