Lots of weather action on tap for this week. Let's start at the beginning. There's a stationary front sitting south of the city right now. West winds blowing parallel to the front will bring warm sunny conditions for much of the day. At some point this afternoon the skies will begin to cloud over as a low pressure system takes form along the stationary front. The clouds will cut off further heating but it should warm to the mid 70s before they arrive.
The low pressure system that forms will wake the stationary front out of its slumber and yank it through here tomorrow afternoon as a cold front. The city will be just outside the main axis of storm action, but we should get a fair amount of rain, and perhaps a thunderstorm, after midnight through Tuesday afternoon. Tomorrow's going to be much cooler with easterly winds and a high in the lower 60s.
Wednesday should be clear with a high of 63. The forecast gets really uncertain for Thursday and Friday. Oh, it is probably going to rain; it's just not clear if the end-of-week storm will turn into a significant nor'easter with heavy rain and high winds, or not.