South Heart, ND Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Heart, a city in Stark County, North Dakota.
Overnight
27°F
Partly Cloudy
Partly cloudy, with a low around 27. West wind around 7 mph.
7-day forecast for South Heart
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 27°F | Partly Cloudy | 7 mph W | 0% |
| Wednesday | 53°F | Mostly Sunny | 6 to 12 mph NW | 0% |
| Wednesday Night | 25°F | Partly Cloudy | 1 to 7 mph NW | 0% |
| Thursday | 50°F | Sunny | 1 to 7 mph S | 0% |
| Thursday Night | 28°F | Partly Cloudy | 7 mph S | 0% |
| Friday | 54°F | Mostly Sunny | 6 to 12 mph W | 0% |
| Friday Night | 33°F | Mostly Clear | 6 to 12 mph SW | 0% |
| Saturday | 57°F | Sunny | 8 to 18 mph W | 0% |
| Saturday Night | 31°F | Mostly Clear | 5 to 8 mph SW | 0% |
| Sunday | 64°F | Mostly Sunny | 6 to 13 mph SW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 10 mph W | 0% |
| Monday | 58°F | Mostly Sunny | 6 to 15 mph W | 0% |
| Monday Night | 32°F | Partly Cloudy | 5 mph W | 1% |
| Tuesday | 59°F | Mostly Sunny | 5 to 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for South Heart (46.868, -102.991). Updated through the day.
Growing snapshot for South Heart
Last spring frost
May 18
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
4b
More local growing data for South Heart: nearby ZIP 58655 weather · frost dates · planting calendar · North Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Theodore Roosevelt Ap, Nd (11.2 mi from South Heart). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.