National Weather Service Forecast for: Le Mars IA
Issued by: National Weather Service Sioux Falls, SD
Updated: 4:29 am CST Feb 2, 2026
 
Today

Today: Mostly cloudy, with a high near 35. Northeast wind around 5 mph becoming southeast in the afternoon.
Mostly Cloudy

Tonight

Tonight: A chance of flurries with a slight chance of snow before 4am, then a chance of flurries between 4am and 5am, then a slight chance of snow after 5am.  Cloudy, with a low around 18. East northeast wind around 5 mph.  Chance of precipitation is 20%.
Slight Chance
Snow
Tuesday

Tuesday: Mostly cloudy, with a high near 30. Northeast wind around 5 mph becoming calm  in the afternoon.
Mostly Cloudy

Tuesday
Night
Tuesday Night: A 20 percent chance of snow after midnight.  Mostly cloudy, with a low around 20. Calm wind becoming northwest around 5 mph after midnight.
Mostly Cloudy
then Slight
Chance Snow
Wednesday

Wednesday: Mostly cloudy, with a high near 34. North northwest wind 5 to 15 mph.
Mostly Cloudy

Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 22. Calm wind becoming south around 5 mph after midnight.
Mostly Cloudy

Thursday

Thursday: Mostly sunny, with a high near 49.
Mostly Sunny

Thursday
Night
Thursday Night: Mostly clear, with a low around 30.
Mostly Clear

Friday

Friday: Mostly sunny, with a high near 41.
Mostly Sunny

Hi 35 °F Lo 18 °F Hi 30 °F Lo 20 °F Hi 34 °F Lo 22 °F Hi 49 °F Lo 30 °F Hi 41 °F

Hazardous Weather Outlook
 

Today
 
Mostly cloudy, with a high near 35. Northeast wind around 5 mph becoming southeast in the afternoon.
Tonight
 
A chance of flurries with a slight chance of snow before 4am, then a chance of flurries between 4am and 5am, then a slight chance of snow after 5am. Cloudy, with a low around 18. East northeast wind around 5 mph. Chance of precipitation is 20%.
Tuesday
 
Mostly cloudy, with a high near 30. Northeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
 
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 20. Calm wind becoming northwest around 5 mph after midnight.
Wednesday
 
Mostly cloudy, with a high near 34. North northwest wind 5 to 15 mph.
Wednesday Night
 
Mostly cloudy, with a low around 22. Calm wind becoming south around 5 mph after midnight.
Thursday
 
Mostly sunny, with a high near 49.
Thursday Night
 
Mostly clear, with a low around 30.
Friday
 
Mostly sunny, with a high near 41.
Friday Night
 
Partly cloudy, with a low around 19.
Saturday
 
Mostly sunny, with a high near 39.
Saturday Night
 
Partly cloudy, with a low around 22.
Sunday
 
Mostly sunny, with a high near 45.

 

Forecast from NOAA-NWS for Le Mars IA.