Expires:202512210600;;939599 FPUS53 KFSD 202258 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 455 PM CST Sat Dec 20 2025 SDZ056-210600- Moody- Including the city of Flandreau 455 PM CST Sat Dec 20 2025 .TONIGHT...Clear, colder with lows around 11. Northwest winds 5 to 10 mph, becoming southeast after midnight. .SUNDAY...Mostly sunny. Highs in the mid 30s. South winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Mostly cloudy. A chance of flurries, a slight chance of rain and freezing rain in the evening. Not as cool with lows in the upper 20s. South winds around 15 mph with gusts up to 25 mph. Chance of precipitation 20 percent. .MONDAY...Partly sunny. Highs in the mid 40s. South winds 10 to 15 mph. .MONDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 20s. Northwest winds 5 to 10 mph. .TUESDAY...Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 30s. .TUESDAY NIGHT...Mostly cloudy. Near steady temperature in the upper 20s. Temperature rising into the lower 30s after midnight. .WEDNESDAY...Mostly cloudy in the morning, then becoming partly sunny. Highs in the mid 40s. .WEDNESDAY NIGHT...Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 30s. .CHRISTMAS DAY...Mostly sunny. Highs in the upper 40s. .THURSDAY NIGHT...Mostly cloudy. Lows in the mid 20s. .FRIDAY...Mostly sunny. Cooler with highs in the upper 30s. .FRIDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 20s. .SATURDAY...Sunny. Highs in the mid 30s. $$