Wetonka, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wetonka, a town in Brown County, South Dakota.
Overnight
36°F
Slight Chance Light Rain
A slight chance of rain. Cloudy. Low around 36, with temperatures rising to around 42 overnight. North northwest wind around 20 mph, with gusts as high as 30 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 |
|---|---|---|---|---|
| Overnight | 36°F | Slight Chance Light Rain | 20 mph NNW | 18% |
| Wednesday | 46°F | Chance Light Rain then Cloudy | 15 to 21 mph NNW | 25% |
| Wednesday Night | 31°F | Mostly Cloudy | 12 to 15 mph N | 0% |
| Thursday | 41°F | Partly Sunny | 7 to 14 mph NNE | 0% |
| Thursday Night | 23°F | Mostly Cloudy | 1 to 6 mph ESE | 0% |
| Friday | 42°F | Mostly Sunny | 2 to 8 mph S | 0% |
| Friday Night | 26°F | Partly Cloudy | 6 mph SSW | 0% |
| Saturday | 55°F | Sunny | 6 to 12 mph WSW | 0% |
| Saturday Night | 32°F | Mostly Clear | 8 mph W | 0% |
| Sunday | 55°F | Sunny | 6 to 10 mph SW | 0% |
| Sunday Night | 34°F | Partly Cloudy | 7 mph SW | 0% |
| Monday | 59°F | Mostly Sunny | 7 to 13 mph WNW | 0% |
| Monday Night | 32°F | Mostly Clear | 7 mph NW | 0% |
| Tuesday | 54°F | Mostly Sunny | 7 mph WSW | 1% |
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
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Bath Corner
Claremont
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Frederick
Grassland Colony
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Hutterville Colony
Mansfield
Mina
Prairiewood Village
Stratford
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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.