Mansfield, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mansfield, a community in Brown County, South Dakota.
Tonight
56°F
Patchy Drizzle
Patchy drizzle and patchy fog. Cloudy, with a low around 56. Northeast wind around 9 mph. Chance of precipitation is 20%.
7-day forecast for Mansfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Patchy Drizzle | 9 mph NE | 17% |
| Saturday | 68°F | Patchy Fog | 9 to 13 mph NNE | 3% |
| Saturday Night | 52°F | Mostly Cloudy | 7 to 12 mph NE | 13% |
| Sunday | 67°F | Chance Rain Showers | 13 mph ENE | 30% |
| Sunday Night | 50°F | Chance Rain Showers | 6 to 10 mph ENE | 50% |
| Monday | 64°F | Chance Rain Showers | 8 mph E | 50% |
| Monday Night | 46°F | Mostly Cloudy | 7 mph ESE | 7% |
| Tuesday | 67°F | Partly Sunny | 6 to 14 mph SE | 3% |
| Tuesday Night | 49°F | Mostly Cloudy | 13 mph SSE | 13% |
| Wednesday | 70°F | Partly Sunny then Slight Chance Rain Showers | 13 to 17 mph SSE | 18% |
| Wednesday Night | 53°F | Chance Rain Showers | 9 to 14 mph SSE | 28% |
| Thursday | 72°F | Chance Rain Showers then Partly Sunny | 10 mph SSE | 28% |
| Thursday Night | 53°F | Partly Cloudy | 8 mph SSE | 13% |
| Friday | 73°F | Partly Sunny | 8 to 15 mph SE | 13% |
Forecast source: National Weather Service (api.weather.gov) for Mansfield (45.246, -98.558). Updated through the day.
Growing snapshot for Mansfield
Last spring frost
May 11
First fall frost
Sep 27
Growing season
137 days
Hardiness zone
4b
More local growing data for Mansfield: nearby ZIP 57460 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Aberdeen
Bath
Bath Corner
Claremont
Columbia
Ferney
Frederick
Grassland Colony
Groton
Hecla
Hutterville Colony
Mina
Prairiewood Village
Stratford
Warner
Westport
Wetonka
Climate data from the nearest NOAA station, Mellette 4 W, Sd (9.6 mi from Mansfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.