Marion, SD Weather & Growing Conditions
Today
72°F
Chance Rain Showers
Patchy smoke before 8am, then a chance of rain showers. Partly sunny, with a high near 72. Northwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Chance Rain Showers | 5 to 15 mph NW | 56% |
| Tonight | 53°F | Mostly Cloudy | 0 to 5 mph W | 14% |
| Wednesday | 77°F | Mostly Sunny | 5 mph S | 1% |
| Wednesday Night | 56°F | Mostly Clear | 5 to 10 mph S | 0% |
| Thursday | 84°F | Sunny | 10 to 15 mph S | 1% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph S | 5% |
| Friday | 88°F | Sunny | 10 to 15 mph SSW | 7% |
| Friday Night | 65°F | Mostly Clear | 10 mph S | 12% |
| Saturday | 91°F | Sunny | 10 to 15 mph SSE | 5% |
| Saturday Night | 67°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 15% |
| Sunday | 89°F | Mostly Sunny | 10 to 15 mph SE | 11% |
| Sunday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 15 mph E | 15% |
| Monday | 88°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph E | 15% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 15 mph ENE | 16% |
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 Aug 4, 2026.