National Weather Service Forecast for: Lennox SD
Issued by: National Weather Service Sioux Falls, SD
Updated: 7:48 am CST Dec 22, 2025
 
Today

Today: Mostly sunny, with a high near 48. South wind 5 to 10 mph.
Mostly Sunny
Tonight

Tonight: Partly cloudy, with a low around 31. South southwest wind 5 to 10 mph becoming northwest in the evening.
Partly Cloudy
Tuesday

Tuesday: Partly sunny, with a high near 39. Northwest wind 5 to 10 mph becoming east in the afternoon.
Partly Sunny
Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 29. Southeast wind around 10 mph.
Mostly Cloudy
Wednesday

Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 48. South southeast wind 5 to 10 mph.
Decreasing
Clouds
Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 35. East southeast wind around 5 mph.
Mostly Cloudy
Christmas
Day
Christmas Day: Mostly cloudy, with a high near 53.
Mostly Cloudy
Thursday
Night
Thursday Night: Partly cloudy, with a low around 26.
Partly Cloudy
Friday

Friday: Mostly sunny, with a high near 40.
Mostly Sunny
Hi 48 °F Lo 31 °F Hi 39 °F Lo 29 °F Hi 48 °F Lo 35 °F Hi 53 °F Lo 26 °F Hi 40 °F

Hazardous Weather Outlook
 

Today
 
Mostly sunny, with a high near 48. South wind 5 to 10 mph.
Tonight
 
Partly cloudy, with a low around 31. South southwest wind 5 to 10 mph becoming northwest in the evening.
Tuesday
 
Partly sunny, with a high near 39. Northwest wind 5 to 10 mph becoming east in the afternoon.
Tuesday Night
 
Mostly cloudy, with a low around 29. Southeast wind around 10 mph.
Wednesday
 
Cloudy, then gradually becoming mostly sunny, with a high near 48. South southeast wind 5 to 10 mph.
Wednesday Night
 
Mostly cloudy, with a low around 35. East southeast wind around 5 mph.
Christmas Day
 
Mostly cloudy, with a high near 53.
Thursday Night
 
Partly cloudy, with a low around 26.
Friday
 
Mostly sunny, with a high near 40.
Friday Night
 
Partly cloudy, with a low around 29.
Saturday
 
Mostly cloudy, with a high near 42.
Saturday Night
 
Mostly cloudy, with a low around 17.
Sunday
 
Sunny, with a high near 31.

 

Forecast from NOAA-NWS for Lennox SD.