Roscoe, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roscoe, a city in Edmunds County, South Dakota.
Tonight
54°F
Areas Of Fog
Areas of fog. Cloudy, with a low around 54. Northeast wind around 12 mph.
7-day forecast for Roscoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Areas Of Fog | 12 mph NE | 13% |
| Saturday | 66°F | Areas Of Fog | 10 to 14 mph NE | 4% |
| Saturday Night | 52°F | Cloudy then Slight Chance Rain Showers | 14 mph NE | 22% |
| Sunday | 63°F | Chance Rain Showers | 16 mph ENE | 39% |
| Sunday Night | 50°F | Rain Showers Likely | 8 to 14 mph E | 57% |
| Monday | 63°F | Chance Rain Showers | 12 mph E | 50% |
| Monday Night | 47°F | Mostly Cloudy | 10 mph ESE | 6% |
| Tuesday | 65°F | Partly Sunny | 8 to 18 mph SE | 4% |
| Tuesday Night | 51°F | Mostly Cloudy then Slight Chance Rain Showers | 17 mph SE | 19% |
| Wednesday | 68°F | Slight Chance Rain Showers | 18 mph SSE | 20% |
| Wednesday Night | 53°F | Chance Rain Showers | 10 to 17 mph SE | 31% |
| Thursday | 71°F | Chance Rain Showers then Mostly Sunny | 12 mph SE | 31% |
| Thursday Night | 54°F | Partly Cloudy | 10 mph SE | 10% |
| Friday | 71°F | Partly Sunny | 9 to 16 mph SE | 10% |
Forecast source: National Weather Service (api.weather.gov) for Roscoe (45.450, -99.337). Updated through the day.
Growing snapshot for Roscoe
Last spring frost
May 7
First fall frost
Oct 3
Growing season
148 days
Hardiness zone
4b
More local growing data for Roscoe: nearby ZIP 57471 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Roscoe, Sd (3.4 mi from Roscoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.