National Weather Service Forecast for: Storm Lake IA
Issued by: National Weather Service Sioux Falls, SD
Updated: 1:18 am CST Feb 2, 2026
 
Overnight

Overnight: Mostly cloudy, with a low around 19. North wind around 5 mph.
Mostly Cloudy
 Monday

Monday: Mostly cloudy, with a high near 30. North wind around 5 mph becoming east southeast in the afternoon.
Mostly Cloudy
 Monday
Night
Monday Night: A chance of flurries before 7pm, then a slight chance of snow after 7pm. Cloudy, with a low around 16. East northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Slight Chance
Snow
 Tuesday

Tuesday: Partly sunny, with a high near 27. North northeast wind around 5 mph.
Partly Sunny
 Tuesday
Night
Tuesday Night: Mostly cloudy, with a low around 17. North northeast wind around 5 mph becoming west northwest after midnight.
Mostly Cloudy
 Wednesday

Wednesday: Partly sunny, with a high near 33. North northwest wind 5 to 10 mph.
Partly Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 21.
Mostly Cloudy
 Thursday

Thursday: Mostly sunny, with a high near 47.
Mostly Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 28.
Partly Cloudy
Lo 19 °F Hi 30 °F Lo 16 °F Hi 27 °F Lo 17 °F Hi 33 °F Lo 21 °F Hi 47 °F Lo 28 °F

 

Overnight
 
 Mostly cloudy, with a low around 19. North wind around 5 mph.
Monday
 
 Mostly cloudy, with a high near 30. North wind around 5 mph becoming east southeast in the afternoon.
Monday Night
 
 A chance of flurries before 7pm, then a slight chance of snow after 7pm. Cloudy, with a low around 16. East northeast wind 5 to 10 mph. Chance of precipitation is 20%.
Tuesday
 
 Partly sunny, with a high near 27. North northeast wind around 5 mph.
Tuesday Night
 
 Mostly cloudy, with a low around 17. North northeast wind around 5 mph becoming west northwest after midnight.
Wednesday
 
 Partly sunny, with a high near 33. North northwest wind 5 to 10 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 21.
Thursday
 
 Mostly sunny, with a high near 47.
Thursday Night
 
 Partly cloudy, with a low around 28.
Friday
 
 Mostly sunny, with a high near 38.
Friday Night
 
 Mostly clear, with a low around 16.
Saturday
 
 Mostly sunny, with a high near 37.
Saturday Night
 
 Partly cloudy, with a low around 21.
Sunday
 
 Mostly sunny, with a high near 41.

 

Forecast from NOAA-NWS for Storm Lake IA.