Mansfield, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mansfield, a community in Brown County, South Dakota.
Overnight
49°F
Partly Cloudy
Partly cloudy. Low around 49, with temperatures rising to around 52 overnight. West northwest wind around 6 mph.
7-day forecast for Mansfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Partly Cloudy | 6 mph WNW | 0% |
| Tuesday | 76°F | Patchy Smoke then Mostly Sunny | 6 to 12 mph WNW | 0% |
| Tuesday Night | 52°F | Mostly Clear | 7 mph SSW | 0% |
| Wednesday | 83°F | Mostly Sunny | 5 to 12 mph SW | 2% |
| Wednesday Night | 59°F | Partly Cloudy | 8 to 12 mph SSW | 3% |
| Thursday | 88°F | Sunny | 9 to 14 mph SSW | 10% |
| Thursday Night | 61°F | Mostly Clear | 9 mph S | 10% |
| Friday | 88°F | Sunny | 8 to 12 mph SW | 2% |
| Friday Night | 61°F | Mostly Clear | 7 to 10 mph E | 3% |
| Saturday | 88°F | Sunny | 7 to 15 mph ESE | 6% |
| Saturday Night | 61°F | Mostly Clear | 10 to 14 mph ENE | 10% |
| Sunday | 86°F | Mostly Sunny | 9 to 14 mph NE | 5% |
| Sunday Night | 62°F | Slight Chance Showers And Thunderstorms | 9 to 14 mph ENE | 26% |
| Monday | 83°F | Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph NE | 26% |
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
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Bath Corner
Claremont
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Grassland Colony
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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 Aug 4, 2026.