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White Rock Colony, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for White Rock Colony, a community in Roberts County, South Dakota.

Overnight
37°F
Light Rain
Rain and patchy fog. Cloudy. Low around 37, with temperatures rising to around 40 overnight. North northwest wind around 26 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.

7-day forecast for White Rock Colony

WhenTempForecastWindPrecip
Overnight 37°F Light Rain 26 mph NNW 86%
Wednesday 43°F Light Rain 21 to 29 mph NNW 90%
Wednesday Night 31°F Patchy Fog then Mostly Cloudy 16 to 20 mph NNW 15%
Thursday 40°F Mostly Cloudy 9 to 17 mph NNW 0%
Thursday Night 23°F Partly Cloudy 0 to 7 mph NE 0%
Friday 40°F Mostly Sunny 0 to 5 mph SSE 0%
Friday Night 26°F Partly Cloudy 5 mph S 0%
Saturday 52°F Sunny 5 to 9 mph SW 2%
Saturday Night 32°F Mostly Clear 8 mph W 0%
Sunday 53°F Sunny 6 mph SW 0%
Sunday Night 34°F Partly Cloudy 6 mph SSW 0%
Monday 58°F Mostly Sunny 5 to 13 mph W 0%
Monday Night 33°F Mostly Clear 3 to 7 mph WNW 0%
Tuesday 52°F Mostly Sunny 6 mph W 1%

Forecast source: National Weather Service (api.weather.gov) for White Rock Colony (45.911, -96.636). Updated through the day.

Growing snapshot for White Rock Colony

Last spring frost
May 3
First fall frost
Oct 3
Growing season
154 days
Hardiness zone
4b

More local growing data for White Rock Colony: nearby ZIP 57260 weather · frost dates · planting calendar · South Dakota frost dates

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Climate data from the nearest NOAA station, White Rock Dam, Mn (7.6 mi from White Rock Colony). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.