000 SXUS73 KLOT 072139 RERORD RECORD EVENT REPORT NATIONAL WEATHER SERVICE CHICAGO IL 0438 PM CDT SUN MAY 07 2023 ...RECORD HIGH TEMPERATURE TIED AT CHICAGO-OHARE... THE HIGH TEMPERATURE OF 87 AT CHICAGO-OHARE TODAY TIED THE RECORD HIGH OF 87 SET IN 1936 AND 1964. $$