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.
This Afternoon
48°F
Mostly Sunny
Mostly sunny. High near 48, with temperatures falling to around 40 in the afternoon. Northwest wind 6 to 12 mph, with gusts as high as 22 mph.
7-day forecast for South Heart
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Mostly Sunny | 6 to 12 mph NW | 0% |
| Tonight | 25°F | Partly Cloudy | 5 mph NW | 0% |
| Wednesday | 53°F | Mostly Sunny | 5 to 10 mph NW | 0% |
| Wednesday Night | 26°F | Partly Cloudy | 2 to 6 mph NW | 0% |
| Thursday | 52°F | Mostly Sunny | 1 to 6 mph S | 0% |
| Thursday Night | 28°F | Partly Cloudy | 7 mph S | 0% |
| Friday | 55°F | Sunny | 6 to 10 mph W | 0% |
| Friday Night | 33°F | Partly Cloudy | 6 to 13 mph SW | 3% |
| Saturday | 56°F | Sunny | 9 to 21 mph W | 3% |
| Saturday Night | 31°F | Mostly Clear | 8 mph SW | 0% |
| Sunday | 64°F | Sunny | 6 to 13 mph SW | 0% |
| Sunday Night | 39°F | Partly Cloudy | 13 mph W | 0% |
| Monday | 57°F | Sunny | 7 to 18 mph W | 0% |
| Monday Night | 33°F | Partly Cloudy | 6 mph W | 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 3, 2026.