Sioux Falls, SD Weather & Growing Conditions
This Afternoon
45°F
Rain Showers
Rain showers. Cloudy, with a high near 45. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 45°F | Rain Showers | 15 mph NW | 82% |
| Tonight | 37°F | Chance Rain Showers then Cloudy | 15 mph NNW | 32% |
| Thursday | 45°F | Cloudy | 10 to 15 mph N | 0% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 10 mph N | 0% |
| Friday | 44°F | Mostly Sunny | 0 to 5 mph E | 0% |
| Friday Night | 29°F | Partly Cloudy | 0 to 5 mph S | 0% |
| Saturday | 53°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Sunday | 58°F | Sunny | 0 to 5 mph WSW | 0% |
| Sunday Night | 38°F | Clear | 5 mph S | 0% |
| Monday | 61°F | Sunny | 5 to 10 mph WSW | 0% |
| Monday Night | 37°F | Mostly Clear | 5 mph NNW | 0% |
| Tuesday | 56°F | Mostly Sunny | 5 mph NNW | 0% |
| Tuesday Night | 38°F | Partly Cloudy | 0 to 5 mph ENE | 0% |
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 (4.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.