SXUS73 KFSD 250642 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 142 AM CDT SAT JUL 25 2020 ...RECORD HIGH MINIMUM TEMPERATURE SET AT SIOUX FALLS SD... A RECORD HIGH MINIMUM TEMPERATURE OF 77 DEGREES WAS SET AT SIOUX FALLS SD YESTERDAY, JULY 24. THIS BREAKS THE PREVIOUS RECORD OF 76 DEGREES SET IN 1940. $$ SG