Tonight's weather features a general increase in cloud cover. Fog can't be ruled out again across South Jersey and Delaware this evening -- it's definitely doable given the mild airmass in place over cold water. However, fog won't be able to develop to the same extent as last night thanks to increasing breezes aloft and the push of rain from the west, which should arrive into the Philly metro by daybreak. Low temperatures tonight will occur around Midnight or just before that, generally in the middle 40's, with slowly rising temperatures towards morning. The city and points south could be in the lower or middle 50's by daybreak.
Tuesday features periods of rainfall as the front slides through, with rain tapering off in the afternoon west of the city and around dinner time at the Shore. Temperatures will generally reside between 55 northwest and 62 south of the city, with most of us in the upper 50's during the day for a top-off point.
Cooler weather begins to push in Wednesday, although the total affect of chill takes two days to reach us. Winds will be a factor for Wednesday, Thursday, and Friday, with temperatures dropping from the lower 50's for a high on Wednesday to the 40's on Thursday and Friday afternoons. That push of cold could be accompanied by a brief sprinkle or shower on Wednesday afternoon but it appears dry for most of us. As of now, the current forecast does support dry weather Thursday and Friday before a round of rain or snow showers moves through on Saturday afternoon or Saturday night.