Sioux Falls, SD Weather & Growing Conditions
Today
45°F
Rain Showers Likely
Rain showers likely. Cloudy, with a high near 45. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 45°F | Rain Showers Likely | 15 mph NW | 67% |
| Tonight | 38°F | Chance Rain Showers | 15 mph NW | 43% |
| Thursday | 46°F | Mostly Cloudy | 10 to 15 mph NNW | 1% |
| Thursday Night | 32°F | Mostly Cloudy | 0 to 10 mph NNE | 0% |
| Friday | 45°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Friday Night | 30°F | Partly Cloudy | 0 mph | 0% |
| Saturday | 52°F | Mostly Sunny | 0 to 10 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 5 mph W | 0% |
| Sunday | 55°F | Sunny | 5 to 10 mph WSW | 0% |
| Sunday Night | 38°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 60°F | Sunny | 5 to 10 mph W | 0% |
| Monday Night | 38°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 57°F | Mostly Sunny | 0 to 5 mph W | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 5 mph SSE | 0% |
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 Nov 4, 2026.