SXUS73 KFSD 212230 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 430 PM CST TUE FEB 21 2017 ...RECORD HIGH TEMPERATURE SET AT SIOUX FALLS SD... A RECORD HIGH TEMPERATURE OF 68 DEGREES WAS SET AT SIOUX FALLS SD TODAY. THIS BREAKS THE OLD RECORD OF 64 SET ON THIS DATE IN 1977. $$ ADAMS