Sioux Falls, SD Weather & Growing Conditions
Today
71°F
Chance Rain Showers
Patchy smoke before 8am, then a chance of rain showers and patchy smoke. Mostly cloudy, with a high near 71. North northwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Chance Rain Showers | 5 to 10 mph NNW | 28% |
| Tonight | 53°F | Partly Cloudy | 0 to 5 mph NW | 10% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph SSE | 1% |
| Wednesday Night | 56°F | Mostly Clear | 5 mph S | 0% |
| Thursday | 82°F | Sunny | 5 to 15 mph S | 0% |
| Thursday Night | 64°F | Mostly Clear | 5 to 15 mph S | 4% |
| Friday | 86°F | Sunny | 5 to 15 mph S | 9% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph S | 14% |
| Saturday | 88°F | Sunny | 5 to 15 mph S | 5% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 22% |
| Sunday | 87°F | Mostly Sunny | 10 to 15 mph SE | 13% |
| Sunday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 19% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 19% |
| Monday Night | 67°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
May 1
First fall frost
Oct 6
Growing season
157 days
Hardiness zone
5a
Explore more for Sioux Falls, SD: full frost dates · planting calendar · South Dakota frost dates
Climate data from the nearest NOAA station, Sioux Falls, Sd (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.