Whitehorse, SD Weather & Growing Conditions
Overnight
47°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 47. West northwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Patchy Smoke | 9 mph WNW | 0% |
| Tuesday | 76°F | Patchy Smoke then Sunny | 12 mph NW | 0% |
| Tuesday Night | 54°F | Mostly Clear | 3 to 8 mph WSW | 0% |
| Wednesday | 85°F | Mostly Sunny | 3 to 10 mph WSW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 6 to 9 mph SSW | 2% |
| Thursday | 92°F | Sunny | 6 to 9 mph W | 1% |
| Thursday Night | 62°F | Mostly Clear | 6 to 9 mph E | 1% |
| Friday | 93°F | Sunny | 6 to 12 mph NNE | 1% |
| Friday Night | 63°F | Mostly Clear | 8 to 12 mph ESE | 1% |
| Saturday | 95°F | Mostly Sunny | 9 to 15 mph NE | 1% |
| Saturday Night | 62°F | Mostly Clear | 8 to 14 mph ENE | 2% |
| Sunday | 91°F | Mostly Sunny | 8 to 16 mph E | 7% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 10 to 15 mph E | 32% |
| Monday | 89°F | Slight Chance Rain Showers then Mostly Sunny | 12 to 16 mph ENE | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Whitehorse, SD
Last spring frost
May 10
First fall frost
Sep 30
Growing season
141 days
Hardiness zone
4b
Explore more for Whitehorse, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Timber Lake, Sd (13 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.