Wetonka, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wetonka, a town in Brown County, South Dakota.
This Afternoon
64°F
Chance Rain Showers
A chance of rain showers and patchy fog. Cloudy. High near 64, with temperatures falling to around 61 in the afternoon. East northeast wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
7-day forecast for Wetonka
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Chance Rain Showers | 15 mph ENE | 25% |
| Tonight | 54°F | Patchy Fog | 8 to 12 mph NE | 9% |
| Saturday | 67°F | Patchy Fog then Cloudy | 13 mph NE | 3% |
| Saturday Night | 52°F | Cloudy | 8 to 12 mph NE | 13% |
| Sunday | 65°F | Cloudy then Chance Rain Showers | 14 mph NE | 28% |
| Sunday Night | 49°F | Chance Rain Showers | 6 to 10 mph ENE | 40% |
| Monday | 64°F | Chance Rain Showers then Mostly Cloudy | 8 mph E | 40% |
| Monday Night | 46°F | Mostly Cloudy | 7 mph ESE | 3% |
| Tuesday | 67°F | Partly Sunny | 5 to 14 mph SE | 3% |
| Tuesday Night | 50°F | Mostly Cloudy | 12 mph SSE | 14% |
| Wednesday | 69°F | Mostly Cloudy then Slight Chance Rain Showers | 13 to 17 mph SSE | 18% |
| Wednesday Night | 52°F | Chance Rain Showers | 8 to 13 mph SSE | 28% |
| Thursday | 71°F | Chance Rain Showers then Partly Sunny | 9 mph SSE | 28% |
| Thursday Night | 53°F | Partly Cloudy | 7 mph SE | 11% |
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
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Bath Corner
Claremont
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Frederick
Grassland Colony
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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 Sep 18, 2026.