Marvin, SD Weather & Growing Conditions
This Afternoon
70°F
Mostly Sunny
Mostly sunny, with a high near 70. West northwest wind 9 to 13 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 9 to 13 mph WNW | 0% |
| Tonight | 54°F | Mostly Clear | 5 to 13 mph WSW | 0% |
| Wednesday | 76°F | Sunny | 10 to 14 mph WSW | 0% |
| Wednesday Night | 61°F | Partly Cloudy | 7 to 21 mph SW | 1% |
| Thursday | 80°F | Sunny | 13 to 21 mph SW | 4% |
| Thursday Night | 64°F | Mostly Clear | 9 to 17 mph SW | 6% |
| Friday | 82°F | Sunny | 9 to 16 mph SW | 10% |
| Friday Night | 63°F | Mostly Clear | 8 mph SSE | 10% |
| Saturday | 81°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 | 63°F | Partly Cloudy then Chance Showers And Thunderstorms | 8 mph ENE | 27% |
| Monday | 76°F | Chance Showers And Thunderstorms | 12 mph NE | 27% |
| Monday Night | 62°F | Slight Chance Showers And Thunderstorms | 10 mph NE | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marvin, SD
Last spring frost
May 14
First fall frost
Sep 28
Growing season
136 days
Hardiness zone
4b
Explore more for Marvin, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Summit 1 W, Sd (6.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.