Sunny start to Sunday in Philly before clouds move in, more mild temps this week

The week ahead can be summed up in three words: Warm, cold, showers. It’ll be warmer than average through Wednesday, followed by the coldest air of the season Thursday through Saturday and a good chance of measurable rain Wednesday night and Thursday.
The week of transition begins Sunday with highs above average in the low 60s and a light west breeze. Sunshine will give way to increasing clouds ahead of a front that crosses our area tomorrow. As is the case with many of the fronts this fall, there is no rain expected.
Monday starts with clouds and turns sunny with highs in the mid 60s. Tuesday is still above average in the low 60s with a mix of sun and clouds. 
A warm front lifts northward across the area Tuesday night and on Wednesday we warm to the mid and upper 60s with increasing clouds.
Wednesday night and Thursday we have a good chance to see some rain ahead of a cold front that swings past on Thursday. 
Behind this front temperatures will plummet to the low 50s on Thursday.
Another weak front and even colder air arrive for Friday and the weekend. Highs will be only in the mid-40s to low 50s across the Delaware Valley.
By Friday, there will be a good chance of snow across parts of the Midwest and Ohio Valley as well as the Appalachian Mountains in western Pennsylvania and West Virginia. No snow is expected for Philly, but parts of the upper Poconos may see a mix or flurries.
Sunday: Increasing clouds. High of 63.
Monday: Turning sunny. High of 68, low of 44.
Tuesday: Partly sunny. High of 61, low of 42.
Wednesday: rain at night. High of 66, low of 46.
Thursday: Chance for showers. High of 51, low of 44.
Friday: Partly cloudy. High of 48, low of 37.
Saturday: Partly sunny. High of 50, low of 40.
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