Expires:202601250500;;468056 FPUS53 KFSD 242122 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 320 PM CST Sat Jan 24 2026 SDZ071-250500- Union- Including the cities of North Sioux City, Beresford, Elk Point, Alcester, and Jefferson 320 PM CST Sat Jan 24 2026 .TONIGHT...Partly cloudy this evening, then clearing. Cold with lows around 5 below. Southeast winds around 5 mph. .SUNDAY...Partly sunny in the morning, then mostly cloudy with a chance of flurries in the afternoon. Cold with highs around 13. Southeast winds around 5 mph, increasing to north 10 to 15 mph in the afternoon. Wind chill values as low as 15 below. .SUNDAY NIGHT...Mostly cloudy in the evening, then clearing. Cold with lows around 9 below. Northwest winds 10 to 15 mph. Wind chill values as low as 23 below. .MONDAY...Sunny. Not as cool with highs in the mid 20s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 22 below in the morning. .MONDAY NIGHT...Mostly clear. Not as cold with lows around 8 above. West winds 10 to 15 mph, becoming northwest after midnight. .TUESDAY...Mostly sunny. Highs around 20. .TUESDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Cold with lows 5 to 10 above. .WEDNESDAY...Partly sunny. Highs in the lower 20s. .WEDNESDAY NIGHT...Mostly clear in the evening, then becoming partly cloudy. Cold with lows around zero. Wind chill values as low as 10 below after midnight. .THURSDAY...Mostly sunny. Highs around 20. Wind chill values as low as 10 below in the morning. .THURSDAY NIGHT...Partly cloudy. Cold with lows around zero. Wind chill values as low as 15 below. .FRIDAY...Mostly sunny. Highs in the lower 20s. Wind chill values as low as 15 below in the morning. .FRIDAY NIGHT...Partly cloudy. Cold with lows 5 to 10 above. .SATURDAY...Mostly sunny. Highs in the upper 20s. $$