BY NATHANIEL JONES Some areas north and west of Fort Worth hit the freezing point overnight, but those frigid temperatures are expected to give way to much warmer weather Wednesday afternoon.Most of the area saw temperatures of about 37 degrees, according to the National Weather Service in Fort Worth.But rural areas of Denton, Parker, Palo Pinto and Wise counties dropped to 32 degrees, according to the weather service.These areas barely hit the freezing point said Jason Dunn, a weather service meteorologist.