Wallace, SD Weather & Growing Conditions
Today
71°F
Mostly Sunny
Mostly sunny, with a high near 71. Northwest wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 12 mph NW | 0% |
| Tonight | 54°F | Mostly Clear | 3 to 8 mph SW | 0% |
| Wednesday | 77°F | Sunny | 7 to 13 mph SW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 9 to 13 mph SSW | 1% |
| Thursday | 82°F | Sunny | 13 to 16 mph SSW | 4% |
| Thursday Night | 63°F | Mostly Clear | 13 mph S | 4% |
| Friday | 84°F | Sunny | 12 mph SSW | 8% |
| Friday Night | 62°F | Mostly Clear | 9 mph SE | 8% |
| Saturday | 84°F | Sunny | 8 to 14 mph SE | 7% |
| Saturday Night | 63°F | Slight Chance Showers And Thunderstorms | 13 mph ESE | 19% |
| Sunday | 81°F | Mostly Sunny | 13 mph E | 12% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms | 12 mph E | 26% |
| Monday | 78°F | Chance Showers And Thunderstorms then Partly Sunny | 12 to 15 mph ENE | 26% |
| Monday Night | 62°F | Slight Chance Showers And Thunderstorms | 14 mph NE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Wallace, SD
Last spring frost
May 4
First fall frost
Oct 6
Growing season
156 days
Hardiness zone
4b
Explore more for Wallace, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Webster, Sd (15.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.