Smithwick, SD Weather & Growing Conditions
Tonight
29°F
Mostly Clear
Mostly clear, with a low around 29. Southeast wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 29°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Wednesday | 54°F | Mostly Sunny | 6 mph NW | 0% |
| Wednesday Night | 32°F | Mostly Cloudy | 6 mph NW | 1% |
| Thursday | 57°F | Mostly Sunny | 3 to 7 mph SW | 0% |
| Thursday Night | 32°F | Mostly Clear | 2 to 8 mph S | 0% |
| Friday | 56°F | Mostly Sunny | 8 mph NW | 0% |
| Friday Night | 33°F | Mostly Clear | 2 to 12 mph SW | 3% |
| Saturday | 61°F | Sunny | 9 to 14 mph W | 4% |
| Saturday Night | 34°F | Mostly Clear | 5 to 10 mph W | 0% |
| Sunday | 66°F | Sunny | 10 to 17 mph SW | 0% |
| Sunday Night | 40°F | Mostly Clear | 8 to 13 mph W | 0% |
| Monday | 62°F | Sunny | 10 mph N | 0% |
| Monday Night | 37°F | Partly Cloudy | 7 mph S | 0% |
| Tuesday | 63°F | Mostly Sunny | 7 to 10 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Smithwick, SD
Last spring frost
May 15
First fall frost
Sep 27
Growing season
133 days
Hardiness zone
5a
Explore more for Smithwick, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Oral, Sd (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.