Mound City, SD Weather & Growing Conditions
This Afternoon
66°F
Patchy Fog
Patchy fog. Cloudy. High near 66, with temperatures falling to around 63 in the afternoon. East wind around 14 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Patchy Fog | 14 mph E | 8% |
| Tonight | 53°F | Patchy Fog | 5 to 13 mph NE | 4% |
| Saturday | 68°F | Patchy Fog | 6 to 13 mph NE | 5% |
| Saturday Night | 52°F | Cloudy then Slight Chance Rain Showers | 9 to 13 mph ENE | 17% |
| Sunday | 64°F | Cloudy then Chance Rain Showers | 12 to 16 mph E | 40% |
| Sunday Night | 49°F | Chance Rain Showers | 7 to 13 mph E | 51% |
| Monday | 65°F | Chance Rain Showers | 7 to 12 mph E | 47% |
| Monday Night | 46°F | Mostly Cloudy | 8 to 12 mph SE | 10% |
| Tuesday | 68°F | Partly Sunny | 9 to 20 mph SE | 4% |
| Tuesday Night | 51°F | Mostly Cloudy then Slight Chance Rain Showers | 15 to 18 mph SE | 15% |
| Wednesday | 73°F | Slight Chance Rain Showers | 17 to 21 mph SSE | 18% |
| Wednesday Night | 52°F | Chance Rain Showers | 8 to 17 mph SE | 30% |
| Thursday | 74°F | Slight Chance Rain Showers then Mostly Sunny | 7 to 12 mph SE | 21% |
| Thursday Night | 53°F | Partly Cloudy | 10 mph SE | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mound City, SD
Last spring frost
May 8
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
4b
Explore more for Mound City, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Selby, Sd (11.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.