Selby, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Selby, a city in Walworth County, South Dakota.
Tonight
32°F
Cloudy then Patchy Fog
Patchy fog after midnight. Cloudy, with a low around 32. North northwest wind 12 to 15 mph.
7-day forecast for Selby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Cloudy then Patchy Fog | 12 to 15 mph NNW | 5% |
| Wednesday | 47°F | Mostly Cloudy | 15 to 18 mph NNW | 1% |
| Wednesday Night | 29°F | Mostly Cloudy then Patchy Fog | 10 to 15 mph NNW | 0% |
| Thursday | 46°F | Patchy Fog then Mostly Sunny | 7 to 10 mph N | 0% |
| Thursday Night | 24°F | Partly Cloudy | 6 mph ESE | 0% |
| Friday | 47°F | Mostly Sunny | 8 mph SSW | 0% |
| Friday Night | 29°F | Partly Cloudy | 8 mph SSW | 0% |
| Saturday | 57°F | Mostly Sunny | 8 to 16 mph W | 4% |
| Saturday Night | 31°F | Mostly Clear | 6 to 10 mph W | 1% |
| Sunday | 58°F | Sunny | 6 to 12 mph SSW | 0% |
| Sunday Night | 36°F | Mostly Clear | 12 mph SW | 0% |
| Monday | 58°F | Sunny | 10 to 17 mph NW | 0% |
| Monday Night | 33°F | Partly Cloudy | 8 mph W | 0% |
| Tuesday | 55°F | Mostly Sunny | 6 to 10 mph SSW | 0% |
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
Nearby towns & communities
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 Nov 4, 2026.