Whitehorse, SD Weather & Growing Conditions
Tonight
32°F
Mostly Cloudy
Mostly cloudy, with a low around 32. North northwest wind 8 to 16 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Mostly Cloudy | 8 to 16 mph NNW | 0% |
| Wednesday | 51°F | Mostly Cloudy | 10 to 17 mph NNW | 0% |
| Wednesday Night | 31°F | Mostly Cloudy | 7 to 13 mph NNW | 0% |
| Thursday | 50°F | Mostly Sunny | 7 mph NNE | 0% |
| Thursday Night | 28°F | Partly Cloudy | 5 mph SE | 0% |
| Friday | 50°F | Mostly Sunny | 6 mph SSW | 0% |
| Friday Night | 31°F | Partly Cloudy | 6 mph SW | 3% |
| Saturday | 60°F | Sunny | 7 to 18 mph W | 3% |
| Saturday Night | 33°F | Mostly Clear | 5 to 8 mph W | 1% |
| Sunday | 61°F | Sunny | 5 to 10 mph SSW | 0% |
| Sunday Night | 38°F | Mostly Clear | 7 to 10 mph WSW | 0% |
| Monday | 60°F | Sunny | 7 to 17 mph NW | 0% |
| Monday Night | 34°F | Partly Cloudy | 6 mph W | 1% |
| Tuesday | 58°F | Mostly Sunny | 5 to 9 mph S | 0% |
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 (12.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.