Marion, SD Weather & Growing Conditions
This Afternoon
51°F
Rain Showers
Rain showers. Cloudy. High near 51, with temperatures falling to around 46 in the afternoon. North northwest wind around 20 mph, with gusts as high as 40 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 |
|---|---|---|---|---|
| This Afternoon | 51°F | Rain Showers | 20 mph NNW | 90% |
| Tonight | 37°F | Rain Showers | 15 to 20 mph NW | 78% |
| Wednesday | 45°F | Rain Showers | 20 mph NW | 75% |
| Wednesday Night | 36°F | Rain Showers Likely then Mostly Cloudy | 15 mph NW | 62% |
| Thursday | 46°F | Partly Sunny | 10 to 15 mph NNW | 10% |
| Thursday Night | 31°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 47°F | Partly Sunny | 0 to 5 mph ESE | 0% |
| Friday Night | 30°F | Partly Cloudy | 5 mph S | 0% |
| Saturday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 3% |
| Saturday Night | 35°F | Mostly Clear | 5 mph WNW | 4% |
| Sunday | 58°F | Sunny | 5 to 10 mph SW | 1% |
| Sunday Night | 38°F | Mostly Clear | 10 mph S | 1% |
| Monday | 60°F | Sunny | 10 to 15 mph WNW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 to 10 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Marion, SD
Last spring frost
Apr 30
First fall frost
Oct 7
Growing season
161 days
Hardiness zone
5a
Explore more for Marion, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Bridgewater, Sd (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.