Smithwick, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Smithwick, a community in Fall River County, South Dakota.
This Afternoon
79°F
Partly Sunny
Partly sunny, with a high near 79. East wind around 9 mph, with gusts as high as 17 mph.
7-day forecast for Smithwick
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 79°F | Partly Sunny | 9 mph E | 1% |
| Tonight | 57°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 50% |
| Saturday | 70°F | Chance Showers And Thunderstorms | 7 to 13 mph NE | 50% |
| Saturday Night | 54°F | Showers And Thunderstorms Likely | 9 to 14 mph NE | 74% |
| Sunday | 64°F | Showers And Thunderstorms | 8 to 13 mph E | 97% |
| Sunday Night | 50°F | Showers And Thunderstorms | 8 to 13 mph NE | 97% |
| Monday | 66°F | Chance Rain Showers | 7 to 12 mph NE | 45% |
| Monday Night | 49°F | Partly Cloudy | 7 to 13 mph E | 13% |
| Tuesday | 75°F | Partly Sunny | 7 to 17 mph SE | 12% |
| Tuesday Night | 54°F | Chance Rain Showers | 9 to 17 mph SE | 29% |
| Wednesday | 80°F | Mostly Sunny | 9 to 14 mph S | 14% |
| Wednesday Night | 55°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph S | 19% |
| Thursday | 80°F | Mostly Sunny | 5 to 9 mph S | 5% |
| Thursday Night | 55°F | Partly Cloudy | 6 to 9 mph SE | 11% |
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 Sep 19, 2026.