Oklahoma Weather: 06-21-2026 9PM CDT - Severe Thunderstorm

Your 9pm Oklahoma weather update Active alerts: Heat Advisory, Heat Advisory, Severe Thunderstorm Watch. around 74 degrees Good evening, Oklahoma. If you stepped outside today, you felt it — that thick, sticky heat that clings to your skin. We're under a Heat Advisory statewide, with heat index values climbing to 108 degrees.