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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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 Sep 19, 2026.