Selby, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Selby, a city in Walworth County, South Dakota.
This Afternoon
66°F
Slight Chance Rain Showers
A slight chance of rain showers. Cloudy. High near 66, with temperatures falling to around 63 in the afternoon. East northeast wind around 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Selby
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Slight Chance Rain Showers | 10 mph ENE | 19% |
| Tonight | 57°F | Cloudy then Chance Rain Showers | 8 to 13 mph ENE | 30% |
| Sunday | 60°F | Chance Rain Showers | 16 mph ENE | 48% |
| Sunday Night | 49°F | Chance Rain Showers | 8 to 14 mph ENE | 49% |
| Monday | 63°F | Slight Chance Rain Showers then Partly Sunny | 8 to 12 mph E | 19% |
| Monday Night | 45°F | Partly Cloudy | 10 mph SE | 6% |
| Tuesday | 66°F | Mostly Sunny | 10 to 21 mph SE | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 18 to 22 mph SE | 3% |
| Wednesday | 69°F | Partly Sunny then Slight Chance Rain Showers | 25 mph SE | 17% |
| Wednesday Night | 53°F | Showers And Thunderstorms Likely | 15 to 24 mph SE | 60% |
| Thursday | 74°F | Chance Showers And Thunderstorms | 13 mph SE | 35% |
| Thursday Night | 54°F | Partly Cloudy | 9 mph SE | 9% |
| Friday | 75°F | Mostly Sunny | 9 to 18 mph SE | 7% |
| Friday Night | 57°F | Partly Cloudy then Slight Chance Rain Showers | 18 to 22 mph SE | 19% |
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 20, 2026.