Roscoe, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roscoe, a city in Edmunds County, South Dakota.
Overnight
34°F
Patchy Fog
Patchy fog after 3am. Cloudy. Low around 34, with temperatures rising to around 37 overnight. North northwest wind around 21 mph, with gusts as high as 29 mph.
7-day forecast for Roscoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 34°F | Patchy Fog | 21 mph NNW | 13% |
| Wednesday | 45°F | Patchy Fog then Mostly Cloudy | 21 mph NNW | 13% |
| Wednesday Night | 31°F | Mostly Cloudy | 12 to 17 mph NNW | 0% |
| Thursday | 42°F | Mostly Sunny | 7 to 12 mph N | 0% |
| Thursday Night | 24°F | Partly Cloudy | 3 to 7 mph ESE | 0% |
| Friday | 43°F | Mostly Sunny | 5 to 8 mph SSE | 0% |
| Friday Night | 28°F | Partly Cloudy | 7 mph SSW | 1% |
| Saturday | 55°F | Sunny | 7 to 15 mph W | 0% |
| Saturday Night | 33°F | Mostly Clear | 7 to 12 mph W | 0% |
| Sunday | 56°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 37°F | Partly Cloudy | 10 mph SW | 0% |
| Monday | 57°F | Mostly Sunny | 9 to 15 mph WNW | 0% |
| Monday Night | 33°F | Mostly Clear | 8 mph NW | 0% |
| Tuesday | 53°F | Mostly Sunny | 6 to 9 mph SW | 1% |
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 Nov 4, 2026.