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
53°F
Mostly Sunny
Mostly sunny. High near 53, with temperatures falling to around 49 in the afternoon. Northwest wind around 8 mph, with gusts as high as 17 mph.
7-day forecast for Smithwick
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 53°F | Mostly Sunny | 8 mph NW | 0% |
| Tonight | 29°F | Mostly Clear | 2 to 6 mph S | 0% |
| Wednesday | 54°F | Mostly Sunny | 6 mph NW | 0% |
| Wednesday Night | 33°F | Mostly Cloudy | 3 to 7 mph NW | 1% |
| Thursday | 57°F | Mostly Sunny | 5 to 8 mph SW | 0% |
| Thursday Night | 33°F | Mostly Clear | 3 to 8 mph S | 0% |
| Friday | 56°F | Mostly Sunny | 6 to 10 mph W | 0% |
| Friday Night | 34°F | Mostly Clear | 3 to 13 mph SW | 3% |
| Saturday | 60°F | Sunny | 10 to 15 mph W | 4% |
| Saturday Night | 34°F | Mostly Clear | 7 to 12 mph W | 0% |
| Sunday | 66°F | Sunny | 12 to 16 mph SW | 0% |
| Sunday Night | 41°F | Mostly Clear | 10 to 14 mph W | 0% |
| Monday | 62°F | Sunny | 10 mph N | 0% |
| Monday Night | 37°F | Partly Cloudy | 8 mph S | 0% |
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 Nov 3, 2026.