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Sioux Falls, SD Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Sioux Falls, a city in Minnehaha County, South Dakota.

Tonight
63°F
Cloudy then Slight Chance Rain Showers
A slight chance of rain showers between 1am and 2am, then patchy fog and a slight chance of rain showers. Cloudy, with a low around 63. North northeast wind around 5 mph. Chance of precipitation is 20%.

7-day forecast for Sioux Falls

WhenTempForecastWindPrecip
Tonight 63°F Cloudy then Slight Chance Rain Showers 5 mph NNE 19%
Saturday 68°F Patchy Fog then Cloudy 5 to 10 mph NNE 14%
Saturday Night 57°F Mostly Cloudy 10 mph NNE 3%
Sunday 65°F Mostly Cloudy then Slight Chance Rain Showers 10 to 15 mph NE 22%
Sunday Night 55°F Rain Showers Likely 10 mph ENE 57%
Monday 61°F Rain Showers Likely 10 mph ENE 57%
Monday Night 49°F Slight Chance Rain Showers then Mostly Cloudy 5 to 10 mph ENE 17%
Tuesday 64°F Partly Sunny 5 to 10 mph E 4%
Tuesday Night 49°F Partly Cloudy 5 mph SE 1%
Wednesday 68°F Partly Sunny 5 to 10 mph SSE 11%
Wednesday Night 54°F Chance Rain Showers 5 to 10 mph SSE 39%
Thursday 69°F Chance Rain Showers 5 to 10 mph SSE 39%
Thursday Night 56°F Mostly Cloudy then Slight Chance Rain Showers 5 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) for Sioux Falls (43.541, -96.732). Updated through the day.

Growing snapshot for Sioux Falls

Last spring frost
Apr 26
First fall frost
Oct 13
Growing season
169 days

More local growing data for Sioux Falls: nearby ZIP 57197 weather · frost dates · planting calendar · South Dakota frost dates

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Climate data from the nearest NOAA station, Sioux Falls Wfo Ap, Sd (4.4 mi from Sioux Falls). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.