Sioux Falls, SD Weather & Growing Conditions
Today
71°F
Chance Rain Showers
Patchy smoke before 9am, then a chance of rain showers. Partly sunny, with a high near 71. North 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 | 71°F | Chance Rain Showers | 5 to 10 mph NNW | 56% |
| Tonight | 53°F | Partly Cloudy | 0 to 5 mph NNW | 12% |
| Wednesday | 76°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Wednesday Night | 56°F | Mostly Clear | 5 mph SSW | 0% |
| Thursday | 82°F | Sunny | 5 to 15 mph SSW | 1% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph S | 4% |
| Friday | 86°F | Sunny | 10 to 15 mph SSW | 11% |
| Friday Night | 65°F | Mostly Clear | 5 to 10 mph S | 13% |
| Saturday | 88°F | Sunny | 5 to 15 mph SSE | 5% |
| Saturday Night | 68°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 21% |
| Sunday | 86°F | Mostly Sunny | 10 to 15 mph ESE | 13% |
| Sunday Night | 68°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 20% |
| Monday | 85°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 15 mph ENE | 20% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms | 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
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 Wfo Ap, Sd (4.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.