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Selby, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Selby, a city in Walworth County, South Dakota.

Overnight
56°F
Patchy Fog
Patchy fog and a slight chance of drizzle. Cloudy, with a low around 56. Northeast wind around 7 mph.

7-day forecast for Selby

WhenTempForecastWindPrecip
Overnight 56°F Patchy Fog 7 mph NE 10%
Saturday 66°F Patchy Fog then Cloudy 7 to 13 mph NE 11%
Saturday Night 52°F Slight Chance Rain Showers 9 to 14 mph ENE 20%
Sunday 63°F Chance Rain Showers 16 mph ENE 39%
Sunday Night 48°F Chance Rain Showers 8 to 14 mph E 41%
Monday 66°F Chance Rain Showers then Partly Sunny 8 to 12 mph ESE 25%
Monday Night 46°F Partly Cloudy 9 to 13 mph SE 7%
Tuesday 68°F Mostly Sunny 13 to 21 mph SE 2%
Tuesday Night 50°F Mostly Cloudy 18 to 23 mph SE 11%
Wednesday 72°F Partly Sunny then Slight Chance Rain Showers 23 mph SE 15%
Wednesday Night 52°F Chance Rain Showers 14 to 21 mph SE 31%
Thursday 74°F Slight Chance Rain Showers 14 mph SE 23%
Thursday Night 54°F Slight Chance Rain Showers then Partly Cloudy 14 mph SE 16%
Friday 75°F Partly Sunny 14 to 20 mph SE 7%

Forecast source: National Weather Service (api.weather.gov) for Selby (45.506, -100.033). Updated through the day.

Growing snapshot for Selby

Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b

More local growing data for Selby: nearby ZIP 57472 weather · frost dates · planting calendar · South Dakota frost dates

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Climate data from the nearest NOAA station, Selby, Sd (6.7 mi from Selby). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.