Carthage, SD Weather & Growing Conditions
Tonight
36°F
Rain Showers
Rain showers. Cloudy. Low around 36, with temperatures rising to around 40 overnight. Northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Rain Showers | 15 to 25 mph NW | 86% |
| Wednesday | 45°F | Rain Showers | 15 to 20 mph NW | 92% |
| Wednesday Night | 33°F | Chance Rain Showers then Mostly Cloudy | 15 mph NW | 31% |
| Thursday | 46°F | Partly Sunny | 10 to 15 mph NNW | 4% |
| Thursday Night | 28°F | Mostly Cloudy | 0 to 10 mph NE | 0% |
| Friday | 46°F | Partly Sunny | 0 to 5 mph SE | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 4% |
| Saturday Night | 32°F | Mostly Clear | 5 mph WNW | 2% |
| Sunday | 57°F | Sunny | 5 to 10 mph SSW | 1% |
| Sunday Night | 37°F | Mostly Clear | 10 mph S | 0% |
| Monday | 59°F | Sunny | 10 to 15 mph W | 0% |
| Monday Night | 35°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 57°F | Mostly Sunny | 5 to 10 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Carthage, SD
Last spring frost
May 5
First fall frost
Oct 2
Growing season
149 days
Hardiness zone
4b
Explore more for Carthage, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Howard, Sd (14.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.