Harman US

Smithwick, SD Weather & Growing Conditions

Tonight
57°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Cloudy. Low around 57, with temperatures rising to around 59 overnight. Northeast wind around 8 mph. Chance of precipitation is 50%.

7-day forecast

WhenTempForecastWindPrecip
Tonight 57°F Chance Showers And Thunderstorms 8 mph NE 48%
Saturday 70°F Chance Showers And Thunderstorms 7 to 13 mph NE 48%
Saturday Night 54°F Showers And Thunderstorms Likely 9 to 14 mph NE 74%
Sunday 63°F Showers And Thunderstorms 8 to 13 mph NE 97%
Sunday Night 49°F Showers And Thunderstorms 9 to 13 mph NE 97%
Monday 66°F Chance Rain Showers 8 to 12 mph NE 43%
Monday Night 49°F Partly Cloudy 8 to 14 mph E 13%
Tuesday 75°F Partly Sunny 8 to 18 mph SE 12%
Tuesday Night 54°F Chance Rain Showers 10 to 18 mph SE 28%
Wednesday 80°F Mostly Sunny 10 to 15 mph S 14%
Wednesday Night 54°F Slight Chance Showers And Thunderstorms 6 to 10 mph S 19%
Thursday 80°F Mostly Sunny 6 to 9 mph S 5%
Thursday Night 55°F Partly Cloudy 7 to 10 mph SE 11%
Friday 81°F Mostly Sunny 7 to 15 mph SE 11%

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 30
Growing season
137 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, Oelrichs, Sd (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.