Expires:202512262300;;261854 FPUS53 KFSD 261526 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 924 AM CST Fri Dec 26 2025 SDZ069-262300- Yankton- Including the city of Yankton 924 AM CST Fri Dec 26 2025 .REST OF TODAY...Patchy fog late this morning. Mostly sunny. Highs in the mid 40s. Northwest winds around 5 mph, becoming southeast this afternoon. .TONIGHT...Mostly cloudy. Near steady temperature around 40. Southeast winds 5 to 10 mph. .SATURDAY...Mostly cloudy in the morning, then becoming partly sunny. Not as cool with highs in the mid 50s. Southeast winds 5 to 10 mph. .SATURDAY NIGHT...Mostly cloudy and breezy. Much cooler with lows around 18. North winds 10 to 15 mph, becoming northwest 15 to 25 mph with gusts up to 35 mph after midnight. .SUNDAY...Mostly cloudy. Patchy blowing snow in the morning. A chance of snow, mainly in the morning. Little or no snow accumulation. Windy and much cooler with highs in the mid 20s. Temperature falling to around 18 in the afternoon. Northwest winds 25 to 30 mph with gusts up to 40 mph. Chance of snow 30 percent. .SUNDAY NIGHT...Partly cloudy and breezy, colder with lows 5 to 10 above. Wind chill values as low as 10 below. .MONDAY...Sunny. Highs around 20. Wind chill values as low as 10 below in the morning. .MONDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cold with lows 10 to 15. Temperature rising to around 20 after midnight. .TUESDAY...Partly sunny. Not as cool with highs in the lower 40s. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows around 20. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly sunny. Cooler with highs in the lower 30s. .WEDNESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows around 10 above. .NEW YEARS DAY...Partly sunny. Highs in the mid 20s. $$