Sioux Falls, SD Weather & Growing Conditions
Today
73°F
Chance Rain Showers
A chance of rain showers and patchy smoke. Mostly cloudy, with a high near 73. Northwest wind 5 to 10 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 | 73°F | Chance Rain Showers | 5 to 10 mph NW | 59% |
| Tonight | 54°F | Isolated Rain Showers then Partly Cloudy | 0 to 5 mph WNW | 22% |
| Wednesday | 77°F | Mostly Sunny | 0 to 5 mph SSE | 1% |
| Wednesday Night | 57°F | Mostly Clear | 5 mph SSW | 0% |
| Thursday | 83°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 65°F | Mostly Clear | 5 to 10 mph S | 4% |
| Friday | 88°F | Sunny | 5 to 10 mph SSW | 10% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Saturday | 90°F | Sunny | 5 to 15 mph SSE | 5% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 22% |
| Sunday | 88°F | Mostly Sunny | 10 mph SE | 13% |
| Sunday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 19% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 19% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ENE | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sioux Falls, SD
Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days
Explore more for Sioux Falls, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Sioux Falls Wfo Ap, Sd (4.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.