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Ferney, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Ferney, a community in Brown County, South Dakota.

Today
67°F
Patchy Fog then Cloudy
Patchy fog before 11am. Cloudy, with a high near 67. North northeast wind 6 to 12 mph, with gusts as high as 21 mph.

7-day forecast for Ferney

WhenTempForecastWindPrecip
Today 67°F Patchy Fog then Cloudy 6 to 12 mph NNE 2%
Tonight 51°F Mostly Cloudy 5 to 10 mph NE 4%
Sunday 66°F Mostly Cloudy 12 mph NE 9%
Sunday Night 48°F Mostly Cloudy 5 to 9 mph E 12%
Monday 67°F Partly Sunny 8 mph E 12%
Monday Night 44°F Partly Cloudy 6 mph ESE 7%
Tuesday 68°F Mostly Sunny 5 to 14 mph SE 1%
Tuesday Night 48°F Partly Cloudy 12 mph SSE 5%
Wednesday 70°F Partly Sunny then Slight Chance Rain Showers 13 to 17 mph SSE 15%
Wednesday Night 52°F Chance Rain Showers 13 mph SSE 31%
Thursday 72°F Chance Rain Showers then Partly Sunny 9 to 13 mph SSE 31%
Thursday Night 53°F Slight Chance Rain Showers 9 mph SSE 21%
Friday 74°F Slight Chance Rain Showers then Partly Sunny 9 to 14 mph SSE 21%
Friday Night 55°F Mostly Cloudy then Slight Chance Rain Showers 14 mph SSE 20%

Forecast source: National Weather Service (api.weather.gov) for Ferney (45.335, -98.094). Updated through the day.

Growing snapshot for Ferney

Last spring frost
May 6
First fall frost
Oct 4
Growing season
150 days
Hardiness zone
4a

More local growing data for Ferney: nearby ZIP 57439 weather · frost dates · planting calendar · South Dakota frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Andover #2, Sd (10.8 mi from Ferney). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.