Selby, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Selby, a city in Walworth County, South Dakota.
Overnight
48°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 48. West northwest wind around 8 mph.
7-day forecast for Selby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Patchy Smoke | 8 mph WNW | 0% |
| Tuesday | 75°F | Patchy Smoke then Mostly Sunny | 9 to 13 mph NW | 0% |
| Tuesday Night | 54°F | Mostly Clear | 6 to 10 mph SSW | 0% |
| Wednesday | 83°F | Sunny | 6 to 12 mph SW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 9 to 14 mph SSW | 2% |
| Thursday | 89°F | Sunny | 12 mph WSW | 1% |
| Thursday Night | 61°F | Mostly Clear | 10 mph E | 1% |
| Friday | 90°F | Sunny | 9 to 14 mph WNW | 1% |
| Friday Night | 63°F | Mostly Clear | 10 to 14 mph E | 1% |
| Saturday | 92°F | Mostly Sunny | 14 to 17 mph E | 1% |
| Saturday Night | 61°F | Mostly Clear | 12 to 16 mph ENE | 5% |
| Sunday | 89°F | Mostly Sunny | 13 to 18 mph ENE | 8% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 17 mph E | 32% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms | 18 mph ENE | 29% |
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 Aug 4, 2026.