Ashton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ashton, a city in Spink County, South Dakota.
Today
67°F
Patchy Fog then Cloudy
Patchy fog before 11am. Cloudy. High near 67, with temperatures falling to around 64 in the afternoon. North northeast wind 9 to 13 mph, with gusts as high as 22 mph.
7-day forecast for Ashton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Patchy Fog then Cloudy | 9 to 13 mph NNE | 2% |
| Tonight | 51°F | Mostly Cloudy | 7 to 13 mph NNE | 13% |
| Sunday | 67°F | Mostly Cloudy | 10 to 14 mph NE | 14% |
| Sunday Night | 48°F | Chance Rain Showers | 7 to 12 mph ENE | 27% |
| Monday | 66°F | Chance Rain Showers then Mostly Cloudy | 9 mph E | 27% |
| Monday Night | 44°F | Mostly Cloudy | 8 mph ESE | 7% |
| Tuesday | 68°F | Mostly Sunny | 7 to 16 mph SE | 3% |
| Tuesday Night | 47°F | Partly Cloudy | 12 to 15 mph SSE | 6% |
| Wednesday | 70°F | Partly Sunny then Slight Chance Rain Showers | 16 to 20 mph SSE | 16% |
| Wednesday Night | 51°F | Chance Rain Showers | 16 mph SSE | 35% |
| Thursday | 72°F | Chance Rain Showers | 13 to 16 mph SSE | 35% |
| Thursday Night | 53°F | Slight Chance Rain Showers | 12 mph SE | 18% |
| Friday | 74°F | Slight Chance Rain Showers then Partly Sunny | 10 to 17 mph SSE | 18% |
| Friday Night | 54°F | Mostly Cloudy then Slight Chance Rain Showers | 16 mph SSE | 21% |
Forecast source: National Weather Service (api.weather.gov) for Ashton (44.993, -98.499). Updated through the day.
Growing snapshot for Ashton
Last spring frost
May 11
First fall frost
Sep 27
Growing season
137 days
Hardiness zone
4b
More local growing data for Ashton: nearby ZIP 57424 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Brentford
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Doland
Frankfort
Glendale Colony
Hillside Colony
Mellette
Northville
Redfield
Spink Colony
Tulare
Turton
Verdon
Climate data from the nearest NOAA station, Mellette 4 W, Sd (9.7 mi from Ashton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.