National Weather Service Forecast for: Sioux Falls SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 4:53 pm CST Dec 16, 2025
 
Tonight

Tonight: Patchy fog after 2am. Otherwise, partly cloudy, with a low around 24. West northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Partly Cloudy
then Patchy
Fog

 Wednesday

Wednesday: Patchy fog before 11am. Otherwise, increasing clouds, with a high near 46. Breezy, with a light south wind increasing to 15 to 20 mph in the morning. Winds could gust as high as 35 mph.
Patchy Fog
then
Increasing
Clouds and
Breezy
 Wednesday
Night
Wednesday Night: Rain, mainly between 9pm and midnight. Low around 26. Breezy, with a south wind 15 to 25 mph becoming west northwest in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Breezy. Rain
then
Decreasing
Clouds
 Thursday

Thursday: A 40 percent chance of snow, mainly between 9am and noon. Partly sunny, with a temperature falling to around 15 by 4pm. Windy, with a northwest wind 25 to 30 mph increasing to 30 to 35 mph. Winds could gust as high as 60 mph. New snow accumulation of less than a half inch possible.
Chance Snow
and Windy

 Thursday
Night
Thursday Night: Mostly clear, with a low around 6. Blustery, with a northwest wind 15 to 20 mph becoming north northwest 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Mostly Clear
and Blustery
then Partly
Cloudy
 Friday

Friday: Partly sunny, with a high near 33. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Partly Sunny


 Friday
Night
Friday Night: Mostly cloudy, with a low around 24.
Mostly Cloudy


 Saturday

Saturday: Partly sunny, with a high near 34.
Partly Sunny


 Saturday
Night
Saturday Night: Partly cloudy, with a low around 14.
Partly Cloudy
Lo 24 °F Hi 46 °F Lo 26 °F Hi 31 °F⇓ Lo 6 °F Hi 33 °F Lo 24 °F Hi 34 °F Lo 14 °F

Hazardous Weather Outlook
High Wind Watch
 

Tonight
 
 Patchy fog after 2am. Otherwise, partly cloudy, with a low around 24. West northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
 
 Patchy fog before 11am. Otherwise, increasing clouds, with a high near 46. Breezy, with a light south wind increasing to 15 to 20 mph in the morning. Winds could gust as high as 35 mph.
Wednesday Night
 
 Rain, mainly between 9pm and midnight. Low around 26. Breezy, with a south wind 15 to 25 mph becoming west northwest in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
 
 A 40 percent chance of snow, mainly between 9am and noon. Partly sunny, with a temperature falling to around 15 by 4pm. Windy, with a northwest wind 25 to 30 mph increasing to 30 to 35 mph. Winds could gust as high as 60 mph. New snow accumulation of less than a half inch possible.
Thursday Night
 
 Mostly clear, with a low around 6. Blustery, with a northwest wind 15 to 20 mph becoming north northwest 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Friday
 
 Partly sunny, with a high near 33. South southeast wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
 
 Mostly cloudy, with a low around 24.
Saturday
 
 Partly sunny, with a high near 34.
Saturday Night
 
 Partly cloudy, with a low around 14.
Sunday
 
 A 20 percent chance of snow before noon. Partly sunny, with a high near 30.
Sunday Night
 
 Mostly cloudy, with a low around 20.
Monday
 
 Partly sunny, with a high near 38.
Monday Night
 
 Partly cloudy, with a low around 26.
Tuesday
 
 Mostly sunny, with a high near 37.

 

Forecast from NOAA-NWS for Sioux Falls SD.