Ashton, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ashton, a city in Spink County, South Dakota.
Overnight
36°F
Chance Light Rain
A chance of rain. Cloudy. Low around 36, with temperatures rising to around 40 overnight. Northwest wind around 22 mph, with gusts as high as 30 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Ashton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 36°F | Chance Light Rain | 22 mph NW | 51% |
| Wednesday | 46°F | Light Rain Likely | 16 to 21 mph NNW | 61% |
| Wednesday Night | 30°F | Mostly Cloudy | 15 mph NNW | 0% |
| Thursday | 42°F | Partly Sunny | 9 to 15 mph N | 0% |
| Thursday Night | 24°F | Mostly Cloudy | 2 to 7 mph E | 0% |
| Friday | 43°F | Partly Sunny | 2 to 7 mph SSE | 0% |
| Friday Night | 24°F | Partly Cloudy | 6 mph S | 0% |
| Saturday | 55°F | Sunny | 6 to 12 mph SW | 1% |
| Saturday Night | 30°F | Mostly Clear | 6 to 9 mph W | 0% |
| Sunday | 56°F | Sunny | 6 to 10 mph SSW | 0% |
| Sunday Night | 33°F | Mostly Clear | 6 to 9 mph SSW | 0% |
| Monday | 60°F | Mostly Sunny | 6 to 12 mph WNW | 0% |
| Monday Night | 31°F | Mostly Clear | 3 to 8 mph NW | 0% |
| Tuesday | 55°F | Mostly Sunny | 3 to 7 mph SW | 1% |
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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Chelsea
Clark Colony
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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 Nov 4, 2026.