Marvin, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marvin, a town in Grant County, South Dakota.
This Afternoon
60°F
Rain Showers Likely
Rain showers likely and areas of fog. Cloudy, with a high near 60. East wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Marvin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Rain Showers Likely | 10 mph E | 73% |
| Tonight | 56°F | Rain Showers Likely then Areas Of Fog | 7 to 10 mph ENE | 58% |
| Saturday | 63°F | Areas Of Fog | 12 mph NNE | 21% |
| Saturday Night | 54°F | Mostly Cloudy | 10 mph NNE | 10% |
| Sunday | 64°F | Mostly Cloudy | 13 mph NE | 10% |
| Sunday Night | 51°F | Chance Rain Showers | 7 to 10 mph ENE | 36% |
| Monday | 61°F | Chance Rain Showers | 9 mph E | 36% |
| Monday Night | 47°F | Mostly Cloudy | 7 mph ESE | 5% |
| Tuesday | 64°F | Partly Sunny | 5 to 12 mph SE | 1% |
| Tuesday Night | 49°F | Partly Cloudy | 9 mph SE | 4% |
| Wednesday | 66°F | Partly Sunny | 9 to 13 mph SSE | 9% |
| Wednesday Night | 53°F | Chance Rain Showers | 9 mph SSE | 29% |
| Thursday | 69°F | Chance Rain Showers | 9 mph S | 29% |
| Thursday Night | 55°F | Partly Cloudy | 8 mph SSE | 10% |
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 Sep 18, 2026.