Smithwick, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithwick, a community in Fall River County, South Dakota.
Today
73°F
Areas Of Smoke
Areas of smoke. Mostly sunny, with a high near 73. East wind 5 to 8 mph, with gusts as high as 20 mph.
7-day forecast for Smithwick
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Areas Of Smoke | 5 to 8 mph E | 8% |
| Tonight | 54°F | Areas Of Smoke then Chance Showers And Thunderstorms | 3 to 10 mph S | 27% |
| Wednesday | 84°F | Chance Showers And Thunderstorms then Sunny | 3 to 8 mph S | 27% |
| Wednesday Night | 59°F | Mostly Clear | 6 to 13 mph S | 1% |
| Thursday | 93°F | Sunny | 6 to 10 mph SE | 1% |
| Thursday Night | 62°F | Clear | 6 to 12 mph E | 1% |
| Friday | 97°F | Sunny | 5 to 12 mph SE | 1% |
| Friday Night | 64°F | Mostly Clear | 6 to 14 mph SE | 1% |
| Saturday | 99°F | Sunny | 5 to 16 mph NW | 1% |
| Saturday Night | 64°F | Mostly Clear | 8 to 17 mph NE | 1% |
| Sunday | 98°F | Sunny | 7 to 18 mph NE | 1% |
| Sunday Night | 65°F | Partly Cloudy | 12 to 20 mph NE | 14% |
| Monday | 95°F | Mostly Sunny | 12 to 20 mph NE | 8% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 13 to 22 mph NE | 37% |
Forecast source: National Weather Service (api.weather.gov) for Smithwick (43.298, -103.216). Updated through the day.
Growing snapshot for Smithwick
Last spring frost
May 15
First fall frost
Sep 30
Growing season
137 days
Hardiness zone
5a
More local growing data for Smithwick: nearby ZIP 57782 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oelrichs, Sd (5.1 mi from Smithwick). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.