Ashton, SD Weather & Growing Conditions
This Afternoon
67°F
Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Cloudy, with a high near 67. North northeast wind around 14 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Slight Chance Rain Showers | 14 mph NNE | 19% |
| Tonight | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 14 mph NNE | 24% |
| Sunday | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 14 mph NE | 24% |
| Sunday Night | 50°F | Chance Rain Showers | 7 to 12 mph ENE | 50% |
| Monday | 63°F | Chance Rain Showers then Mostly Cloudy | 8 mph E | 28% |
| Monday Night | 43°F | Mostly Cloudy | 7 mph SE | 3% |
| Tuesday | 65°F | Mostly Sunny | 6 to 14 mph SE | 1% |
| Tuesday Night | 47°F | Partly Cloudy | 12 to 15 mph SE | 4% |
| Wednesday | 67°F | Partly Sunny | 15 to 21 mph SSE | 10% |
| Wednesday Night | 52°F | Showers And Thunderstorms Likely | 18 mph SSE | 60% |
| Thursday | 71°F | Showers And Thunderstorms Likely | 10 to 15 mph SSE | 59% |
| Thursday Night | 53°F | Mostly Cloudy | 7 to 10 mph SE | 10% |
| Friday | 74°F | Partly Sunny | 8 to 14 mph SE | 10% |
| Friday Night | 57°F | Mostly Cloudy then Slight Chance Rain Showers | 13 to 16 mph SSE | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ashton, SD
Last spring frost
May 11
First fall frost
Sep 27
Growing season
137 days
Hardiness zone
4b
Explore more for Ashton, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Mellette 4 W, Sd (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.