Sioux Falls, SD Weather & Growing Conditions
Overnight
61°F
Patchy Fog
Patchy fog. Cloudy, with a low around 61. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Patchy Fog | 5 mph N | 10% |
| Saturday | 67°F | Patchy Fog then Mostly Cloudy | 5 to 10 mph N | 15% |
| Saturday Night | 55°F | Mostly Cloudy | 10 mph NNE | 7% |
| Sunday | 67°F | Mostly Cloudy | 10 to 15 mph NE | 9% |
| Sunday Night | 52°F | Chance Rain Showers | 10 mph ENE | 48% |
| Monday | 61°F | Chance Rain Showers | 10 mph ENE | 48% |
| Monday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 10 mph E | 15% |
| Tuesday | 64°F | Mostly Sunny | 5 to 10 mph ESE | 5% |
| Tuesday Night | 45°F | Partly Cloudy | 5 mph SE | 2% |
| Wednesday | 67°F | Mostly Sunny | 5 to 10 mph SSE | 8% |
| Wednesday Night | 50°F | Chance Rain Showers | 5 to 10 mph SSE | 34% |
| Thursday | 68°F | Chance Rain Showers | 5 to 10 mph SSE | 34% |
| Thursday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 16% |
| Friday | 71°F | Slight Chance Rain Showers then Partly Sunny | 5 to 10 mph SE | 16% |
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 (1.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.