Sunshine gave way to clouds in the early afternoon and then some rain by the evening commute; despite that we reached a high of 77 at Philly International prior to that. Overnight lows will be in the middle to upper 50s with light rain and even some fog as a warm front approaches from the west.
Wednesday will continue to be overcast with light rain as the warm front tries to progress northward, but will get stuck just north of Center City(along the PA Turnpike/I-195 area). Highs will be in the middle to upper 70s with a variable wind. Overnight Wednesday shall be interesting as the triple point(the area where the warm front, cold front, and occluded front meet up) will pass through the region and we can have some strong thunderstorms overnight. The really severe stuff should stay south of the Mason-Dixon Line, but if a training storm makes it up here don't be shocked. Lows will be in the middle 60s.
Thursday will start off stormy, but then begin to clear out by the afternoon with highs in the lower 70s. Although the cold front comes through, the upper level low lingers around for the rest of the week; this means that on Friday and Saturday afternoon once we reach our convective temperature(the approximate temperature the surface must warm to in order for clouds to develop) we can see some light rain showers pop up with highs in the lower 70s.
Sunday and Memorial Day look fine with highs ranging from 75-80 with no rain chances. You can check out the rest of the 7-day forecast(any time) at www.scottderekwx.com/forecast.html.