Marvin, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marvin, a town in Grant County, South Dakota.
Overnight
52°F
Patchy Smoke
Patchy smoke before 4am. Partly cloudy, with a low around 52. Northwest wind around 8 mph.
7-day forecast for Marvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Patchy Smoke | 8 mph NW | 0% |
| Tuesday | 70°F | Mostly Sunny | 7 to 12 mph NW | 0% |
| Tuesday Night | 54°F | Mostly Clear | 3 to 10 mph WSW | 0% |
| Wednesday | 76°F | Sunny | 9 to 13 mph WSW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 6 to 21 mph SW | 1% |
| Thursday | 80°F | Sunny | 13 to 21 mph SW | 4% |
| Thursday Night | 64°F | Mostly Clear | 8 to 17 mph SW | 5% |
| Friday | 82°F | Sunny | 9 to 17 mph SW | 10% |
| Friday Night | 63°F | Mostly Clear | 7 mph S | 10% |
| Saturday | 82°F | Sunny | 6 to 13 mph SE | 9% |
| Saturday Night | 64°F | Slight Chance Showers And Thunderstorms | 12 mph E | 22% |
| Sunday | 79°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 10 mph ENE | 22% |
| Sunday Night | 64°F | Partly Cloudy then Chance Showers And Thunderstorms | 8 mph ENE | 27% |
| Monday | 77°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 27% |
Forecast source: National Weather Service (api.weather.gov) for Marvin (45.261, -96.915). Updated through the day.
Growing snapshot for Marvin
Last spring frost
May 14
First fall frost
Sep 28
Growing season
136 days
Hardiness zone
4b
More local growing data for Marvin: nearby ZIP 57251 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Summit 1 W, Sd (6.5 mi from Marvin). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.