Winner, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winner, a city in Tripp County, South Dakota.
Tonight
58°F
Cloudy then Patchy Fog
Patchy fog between midnight and 1am, then patchy fog and a chance of showers and thunderstorms between 1am and 4am, then patchy fog and a slight chance of rain showers. Cloudy. Low around 58, with temperatures rising to around 61 overnight. North wind around 7 mph. Chance of precipitation is 30%.
7-day forecast for Winner
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Cloudy then Patchy Fog | 7 mph N | 33% |
| Saturday | 67°F | Patchy Fog | 7 to 10 mph N | 19% |
| Saturday Night | 54°F | Rain Showers Likely | 10 mph NE | 61% |
| Sunday | 62°F | Rain Showers | 8 to 12 mph NE | 81% |
| Sunday Night | 51°F | Rain Showers | 10 mph E | 91% |
| Monday | 62°F | Rain Showers | 12 mph E | 91% |
| Monday Night | 48°F | Chance Rain Showers then Mostly Cloudy | 8 to 12 mph E | 29% |
| Tuesday | 68°F | Mostly Cloudy | 8 to 18 mph SE | 14% |
| Tuesday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 15 to 18 mph SE | 20% |
| Wednesday | 73°F | Chance Rain Showers | 18 to 22 mph S | 32% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 13 to 17 mph S | 30% |
| Thursday | 74°F | Chance Rain Showers then Partly Sunny | 13 mph S | 30% |
| Thursday Night | 56°F | Partly Cloudy | 12 mph SE | 9% |
| Friday | 75°F | Partly Sunny | 12 to 17 mph SE | 11% |
Forecast source: National Weather Service (api.weather.gov) for Winner (43.378, -99.855). Updated through the day.
Growing snapshot for Winner
Last spring frost
May 1
First fall frost
Oct 9
Growing season
159 days
Hardiness zone
5a
More local growing data for Winner: nearby ZIP 57528 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Winner, Sd (13.8 mi from Winner). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.