Wentworth, SD Weather & Growing Conditions
Tonight
37°F
Rain Showers
Rain showers. Cloudy. Low around 37, with temperatures rising to around 40 overnight. North northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 37°F | Rain Showers | 15 to 20 mph NNW | 76% |
| Wednesday | 43°F | Rain Showers | 20 mph NW | 90% |
| Wednesday Night | 35°F | Chance Rain Showers then Cloudy | 15 mph NNW | 43% |
| Thursday | 44°F | Mostly Cloudy | 10 to 15 mph N | 0% |
| Thursday Night | 29°F | Mostly Cloudy | 0 to 10 mph NNE | 0% |
| Friday | 43°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Friday Night | 29°F | Partly Cloudy | 5 mph S | 0% |
| Saturday | 51°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Saturday Night | 34°F | Mostly Clear | 5 to 10 mph WNW | 4% |
| Sunday | 56°F | Sunny | 5 to 10 mph WSW | 2% |
| Sunday Night | 37°F | Mostly Clear | 10 mph SSW | 0% |
| Monday | 58°F | Sunny | 10 to 15 mph W | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph NW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 to 10 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Wentworth, SD
Last spring frost
May 2
First fall frost
Oct 5
Growing season
156 days
Hardiness zone
4b
Explore more for Wentworth, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Wentworth 2.5 Wnw, Sd (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.