It’s been well-advertised that warmer than average temperatures will finally be felt in the Philadelphia area.

The experimental statistical model statistics (EKDMOS) has a temp of about 80, with the possibility of higher (or lower):

Experimental temperature forescast for Philadelphia
Experimental MOS forecast


By the way, the National Blend of Models (NBM) shows high temperatures of 76 (Friday) and 77 (Saturday).

You can see that on Sunday, 4/15, the range of temperature possibilities is quite large indicating high uncertainty for temperature highs on Sunday.

There’s a high chance of rain on Sunday, especially Sunday afternoon and evening, into Monday.   Some of the rain may be very heavy.