Expires:202512272100;;315538 FPUS53 KFSD 271343 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 740 AM CST Sat Dec 27 2025 IAZ014-272100- Clay- Including the city of Spencer 740 AM CST Sat Dec 27 2025 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST THIS MORNING... .TODAY...Areas of dense fog this morning. Mostly cloudy. Highs in the upper 40s. South winds 10 to 15 mph with gusts up to 25 mph. .TONIGHT...Mostly cloudy. Patchy fog in the evening, then widespread fog after midnight. A chance of rain and freezing rain after midnight. Cooler with lows in the lower 20s. South winds around 5 mph, increasing to north 15 to 20 mph with gusts up to 30 mph after midnight. Chance of precipitation 40 percent. .SUNDAY...Snow and freezing rain in the morning, then snow likely in the afternoon. Patchy blowing snow in the morning. Blowing snow in the afternoon. Total snow accumulation of 1 to 3 inches. Ice accumulation around a trace. Windy and much cooler with highs in the lower 30s. Temperature falling to around 13 in the afternoon. Northwest winds 20 to 30 mph with gusts up to 45 mph. Chance of precipitation 80 percent. .SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of snow. Areas of blowing snow. Windy and much colder with lows around 3 above. Northwest winds 25 to 30 mph with gusts up to 45 mph. Wind chill values as low as 19 below. .MONDAY...Mostly sunny. Patchy blowing snow. Breezy and much colder with highs around 14. Northwest winds 15 to 25 mph with gusts up to 40 mph. Wind chill values as low as 18 below. .MONDAY NIGHT...Mostly clear. Cold with lows around 5 above. .TUESDAY...Mostly sunny. Not as cool with highs in the lower 30s. .TUESDAY NIGHT...Mostly cloudy. Not as cool with lows 15 to 20. .WEDNESDAY...Mostly cloudy. A slight chance of snow in the afternoon. Highs in the mid 20s. Chance of snow 20 percent. .WEDNESDAY NIGHT...Mostly cloudy. Much colder with lows around zero. Wind chill values as low as 15 below. .NEW YEARS DAY...Mostly sunny. Colder with highs around 10 above. Wind chill values as low as 15 below. .THURSDAY NIGHT...Mostly clear. Cold with lows around zero. Wind chill values as low as 10 below. .FRIDAY...Mostly sunny. Highs around 20. Wind chill values as low as 10 below in the morning. $$