Roscoe, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Roscoe, a city in Edmunds County, South Dakota.
Today
74°F
Mostly Sunny
Mostly sunny, with a high near 74. West northwest wind around 13 mph, with gusts as high as 21 mph.
7-day forecast for Roscoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Mostly Sunny | 13 mph WNW | 0% |
| Tonight | 54°F | Mostly Clear | 6 to 12 mph SW | 0% |
| Wednesday | 82°F | Mostly Sunny | 7 to 14 mph WSW | 0% |
| Wednesday Night | 59°F | Partly Cloudy | 8 to 14 mph SW | 1% |
| Thursday | 88°F | Sunny | 13 mph WSW | 3% |
| Thursday Night | 61°F | Mostly Clear | 8 to 12 mph ESE | 2% |
| Friday | 89°F | Sunny | 8 to 14 mph SSW | 2% |
| Friday Night | 61°F | Mostly Clear | 9 to 14 mph E | 2% |
| Saturday | 89°F | Mostly Sunny | 12 to 17 mph E | 2% |
| Saturday Night | 61°F | Mostly Clear | 12 to 16 mph ENE | 6% |
| Sunday | 86°F | Mostly Sunny | 12 to 17 mph ENE | 4% |
| Sunday Night | 62°F | Chance Showers And Thunderstorms | 14 to 17 mph ENE | 31% |
| Monday | 83°F | Chance Showers And Thunderstorms | 14 to 18 mph ENE | 31% |
| Monday Night | 60°F | Slight Chance Showers And Thunderstorms | 13 to 17 mph ENE | 25% |
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 Aug 4, 2026.