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 | 20% |
| Wednesday | 77°F | Mostly Sunny | 0 to 5 mph SSE | 1% |
| Wednesday Night | 57°F | Mostly Clear | 5 mph S | 0% |
| Thursday | 83°F | Sunny | 5 to 15 mph SSW | 0% |
| Thursday Night | 65°F | Mostly Clear | 5 to 10 mph S | 4% |
| Friday | 87°F | Sunny | 5 to 10 mph S | 10% |
| Friday Night | 66°F | Mostly Clear | 5 to 10 mph S | 13% |
| Saturday | 90°F | Sunny | 5 to 15 mph SSE | 5% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph ESE | 23% |
| Sunday | 88°F | Mostly Sunny | 10 mph ESE | 13% |
| Sunday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 10 to 15 mph E | 20% |
| Monday | 87°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 10 to 15 mph E | 20% |
| 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
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 (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.