 freedom. Here's your Oklahoma City AccuWeather forecast for the overnight hours. It remains partly cloudy and mild, the low reaching 67. Later Monday, a mix of clouds and sun with some widely separated thunderstorms, the high of 81. A beautiful summer day on tap for Tuesday, mostly sunny, the high of 87. A mix of clouds and sun for Wednesday, the high up to 89. With your Oklahoma City AccuWeather forecast, I'm meteorologist Jason Catarina.