Carthage, TN Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Carthage, a town in Smith County, Tennessee.
Tonight
61°F
Showers And Thunderstorms
Showers and thunderstorms after 10pm. Mostly cloudy, with a low around 61. South southeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
7-day forecast for Carthage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Showers And Thunderstorms | 10 to 15 mph SSE | 87% |
| Wednesday | 73°F | Showers And Thunderstorms | 5 to 15 mph SSW | 98% |
| Wednesday Night | 47°F | Areas Of Fog | 0 to 5 mph WSW | 6% |
| Thursday | 73°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 41°F | Areas Of Fog | 0 mph | 0% |
| Friday | 70°F | Areas Of Fog then Mostly Sunny | 0 to 5 mph NW | 1% |
| Friday Night | 36°F | Partly Cloudy | 0 to 5 mph NNW | 2% |
| Saturday | 62°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 29°F | Mostly Cloudy | 0 mph | 1% |
| Sunday | 63°F | Mostly Sunny | 0 to 5 mph NNW | 8% |
| Sunday Night | 27°F | Mostly Clear | 0 mph | 10% |
| Monday | 64°F | Sunny | 0 to 5 mph WNW | 6% |
| Monday Night | 28°F | Mostly Clear | 0 mph | 1% |
| Tuesday | 68°F | Sunny | 0 to 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Carthage (36.257, -85.943). Updated through the day.
Growing snapshot for Carthage
Last spring frost
Apr 10
First fall frost
Oct 29
Growing season
201 days
Hardiness zone
7b
More local growing data for Carthage: nearby ZIP 37030 weather · frost dates · planting calendar · Tennessee frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Carthage, Tn (1.8 mi from Carthage). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.