Wetonka, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wetonka, a town in Brown County, South Dakota.
Tonight
36°F
Cloudy then Slight Chance Light Rain
A slight chance of rain after 1am. Cloudy, with a low around 36. North northwest wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Wetonka
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 36°F | Cloudy then Slight Chance Light Rain | 14 to 17 mph NNW | 23% |
| Wednesday | 46°F | Slight Chance Light Rain then Cloudy | 15 to 18 mph NNW | 23% |
| Wednesday Night | 30°F | Mostly Cloudy | 12 to 15 mph NNW | 1% |
| Thursday | 42°F | Mostly Sunny | 7 to 13 mph N | 0% |
| Thursday Night | 24°F | Mostly Cloudy | 2 to 6 mph ESE | 0% |
| Friday | 43°F | Partly Sunny | 2 to 7 mph SSW | 0% |
| Friday Night | 26°F | Partly Cloudy | 6 mph SSW | 0% |
| Saturday | 56°F | Mostly Sunny | 6 to 13 mph W | 3% |
| Saturday Night | 31°F | Mostly Clear | 8 mph W | 2% |
| Sunday | 56°F | Sunny | 7 to 10 mph SW | 1% |
| Sunday Night | 35°F | Partly Cloudy | 9 mph SW | 0% |
| Monday | 58°F | Sunny | 10 to 16 mph WNW | 0% |
| Monday Night | 32°F | Partly Cloudy | 5 to 8 mph WNW | 0% |
| Tuesday | 53°F | Mostly Sunny | 5 to 8 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Wetonka (45.624, -98.772). Updated through the day.
Growing snapshot for Wetonka
Last spring frost
May 9
First fall frost
Sep 28
Growing season
141 days
Hardiness zone
4b
More local growing data for Wetonka: nearby ZIP 57481 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Aberdeen
Bath
Bath Corner
Claremont
Columbia
Ferney
Frederick
Grassland Colony
Groton
Hecla
Hutterville Colony
Mansfield
Mina
Prairiewood Village
Stratford
Warner
Westport
Climate data from the nearest NOAA station, Leola, Sd (13.2 mi from Wetonka). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.