Marvin, SD Weather & Growing Conditions
Overnight
38°F
Light Rain
Rain and patchy fog. Cloudy. Low around 38, with temperatures rising to around 41 overnight. North northwest wind 21 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 38°F | Light Rain | 21 to 24 mph NNW | 86% |
| Wednesday | 42°F | Light Rain | 20 to 25 mph NNW | 90% |
| Wednesday Night | 34°F | Patchy Fog | 21 mph NNW | 24% |
| Thursday | 38°F | Patchy Fog then Mostly Cloudy | 10 to 20 mph N | 0% |
| Thursday Night | 28°F | Mostly Cloudy | 2 to 9 mph NE | 0% |
| Friday | 40°F | Mostly Sunny | 5 mph S | 0% |
| Friday Night | 31°F | Partly Cloudy | 5 to 9 mph SSW | 0% |
| Saturday | 51°F | Mostly Sunny | 9 to 13 mph WSW | 1% |
| Saturday Night | 37°F | Partly Cloudy | 10 to 14 mph W | 4% |
| Sunday | 54°F | Sunny | 8 to 12 mph WSW | 2% |
| Sunday Night | 40°F | Partly Cloudy | 8 to 16 mph SW | 0% |
| Monday | 56°F | Mostly Sunny | 12 to 16 mph WNW | 0% |
| Monday Night | 39°F | Mostly Clear | 8 to 12 mph WNW | 0% |
| Tuesday | 52°F | Mostly Sunny | 9 mph W | 0% |
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 Nov 4, 2026.