Expires:202512211500;;957710 FPUS53 KFSD 210735 ZFPFSD Zone Forecasts for SE South Dakota/NW Iowa/SW Minnesota National Weather Service Sioux Falls SD 133 AM CST Sun Dec 21 2025 IAZ014-211500- Clay- Including the city of Spencer 133 AM CST Sun Dec 21 2025 .REST OF TONIGHT...Mostly clear and much colder. Near steady temperature around 12. Southeast winds around 5 mph. .SUNDAY...Sunny. Highs in the upper 30s. South winds 10 to 15 mph with gusts up to 25 mph. .SUNDAY NIGHT...Mostly cloudy. Not as cool with lows in the upper 20s. South winds 10 to 15 mph with gusts up to 25 mph. .MONDAY...Partly sunny. Highs in the lower 40s. South winds 10 to 15 mph with gusts up to 25 mph. .MONDAY NIGHT...Partly cloudy. Lows in the upper 20s. Southwest winds around 10 mph, becoming northwest after midnight. .TUESDAY...Partly sunny. Highs in the upper 30s. Temperature falling into the mid 30s in the afternoon. .TUESDAY NIGHT...Mostly cloudy. Near steady temperature in the upper 20s. Temperature rising to around 30 after midnight. .WEDNESDAY...Cloudy. Highs in the lower 40s. .WEDNESDAY NIGHT...Mostly cloudy. Lows in the mid 30s. .CHRISTMAS DAY...Mostly sunny. Highs around 50. .THURSDAY NIGHT...Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 20s. .FRIDAY...Partly sunny. Cooler with highs around 40. .FRIDAY NIGHT...Mostly cloudy. Lows in the lower 20s. .SATURDAY...Sunny. Highs in the upper 30s. $$