SXUS73 KFSD 061149 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 650 AM CDT WED MAY 6 2026 ...RECORD LOW TEMPERATURE TIED THIS MORNING AT SIOUX FALLS SD... A RECORD LOW TEMPERATURE OF 25 DEGREES WAS TIED AT JOE FOSS FIELD IN SIOUX FALLS SOUTH DAKOTA SHORTLY AFTER 630 AM CDT THIS MORNING. THIS RECORD LOW FOR MAY 6TH WAS ORIGINALLY SET IN 1931 AND AGAIN IN 1976. $$