Wallace, SD Weather & Growing Conditions
This Afternoon
45°F
Chance Light Rain
A chance of rain. Cloudy, with a high near 45. North wind around 21 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Chance Light Rain | 21 mph N | 46% |
| Tonight | 37°F | Light Rain | 14 to 18 mph NNW | 86% |
| Wednesday | 42°F | Light Rain | 15 to 18 mph NNW | 85% |
| Wednesday Night | 32°F | Slight Chance Light Rain then Mostly Cloudy | 12 to 16 mph NNW | 24% |
| Thursday | 41°F | Partly Sunny | 9 to 14 mph N | 3% |
| Thursday Night | 29°F | Mostly Cloudy | 1 to 8 mph ENE | 0% |
| Friday | 43°F | Partly Sunny | 2 to 6 mph S | 0% |
| Friday Night | 30°F | Partly Cloudy | 6 mph SSW | 0% |
| Saturday | 53°F | Mostly Sunny | 6 to 13 mph WSW | 4% |
| Saturday Night | 34°F | Mostly Clear | 6 to 9 mph WNW | 3% |
| Sunday | 54°F | Sunny | 6 to 10 mph WSW | 3% |
| Sunday Night | 38°F | Partly Cloudy | 9 mph SSW | 0% |
| Monday | 56°F | Mostly Sunny | 9 to 15 mph W | 0% |
| Monday Night | 36°F | Mostly Clear | 5 to 8 mph W | 0% |
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 Nov 4, 2026.