PROVIDENCE, R.I. -- A warm stretch will start today with the temperature climbing to the mid 50s degrees in Providence.Expect partly sunny skies and a southwest wind of about 6 mph."Unseasonably mild temperatures will remain across southern New England through the end of the week as weak low pressure systems pass west of the region," the Weather Service says in its forecast discussion.Thursday looks mostly cloudy with a high of 62 or 63.