SXUS73 KFSD 170622 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 122 AM CDT SUN JUN 17 2018 ...RECORD WARM LOW TEMPERATURE BROKEN AT SIOUX FALLS SD... THE LOW TEMPERATURE IN SIOUX FALLS ON SATURDAY WAS 76 DEGREES, WHICH BREAKS THE RECORD FOR THE WARMEST LOW TEMPERATURE ON JUNE 16TH. THE PREVIOUS RECORD OF 71 DEGREES WAS SET IN 1921...1959...AND 1995. $$