National Weather Service Forecast for: Lennox SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 7:13 pm CST Dec 17, 2025
 
Tonight

Tonight: Rain, mainly before 1am. Low around 25. 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.
Rain and
Blustery then
Chance Rain
and Breezy
 Thursday

Thursday: A chance of snow or flurries before 1pm, then a chance of flurries between 1pm and 4pm. Mostly cloudy, with a temperature falling to around 11 by 3pm. Very windy, with a northwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 30%.
Chance Snow
and Very
Windy
 Thursday
Night
Thursday Night: Mostly clear, with a low around 6. Blustery, with a northwest wind 15 to 25 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Mostly Clear
and Blustery
then Partly
Cloudy
 Friday

Friday: Partly sunny, with a high near 34. Breezy, with a south southeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Partly Sunny
and Breezy

 Friday
Night
Friday Night: Mostly cloudy, with a low around 26. South southeast wind around 10 mph becoming north northwest after midnight.
Mostly Cloudy

 Saturday

Saturday: Mostly sunny, with a high near 34. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 16.
Mostly Clear

 Sunday

Sunday: Partly sunny, with a high near 36.
Partly Sunny

 Sunday
Night
Sunday Night: Mostly cloudy, with a low around 27.
Mostly Cloudy
Lo 25 °F Hi 29 °F⇓ Lo 6 °F Hi 34 °F Lo 26 °F Hi 34 °F Lo 16 °F Hi 36 °F Lo 27 °F

Hazardous Weather Outlook
High Wind Warning
 

Tonight
 
 Rain, mainly before 1am. Low around 25. 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 chance of snow or flurries before 1pm, then a chance of flurries between 1pm and 4pm. Mostly cloudy, with a temperature falling to around 11 by 3pm. Very windy, with a northwest wind 30 to 40 mph, with gusts as high as 55 mph. Chance of precipitation is 30%.
Thursday Night
 
 Mostly clear, with a low around 6. Blustery, with a northwest wind 15 to 25 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 35 mph.
Friday
 
 Partly sunny, with a high near 34. Breezy, with a south southeast wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Friday Night
 
 Mostly cloudy, with a low around 26. South southeast wind around 10 mph becoming north northwest after midnight.
Saturday
 
 Mostly sunny, with a high near 34. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
 
 Mostly clear, with a low around 16.
Sunday
 
 Partly sunny, with a high near 36.
Sunday Night
 
 Mostly cloudy, with a low around 27.
Monday
 
 Mostly sunny, with a high near 44.
Monday Night
 
 Partly cloudy, with a low around 28.
Tuesday
 
 Partly sunny, with a high near 39.
Tuesday Night
 
 Mostly cloudy, with a low around 25.
Wednesday
 
 Partly sunny, with a high near 40.

 

Forecast from NOAA-NWS for Lennox SD.