After running nearly 20 degrees above normal on Monday, we'll come back down close to reality this week. Get in the sunshine while you can, because models are showing next weekend and a cool and soggy shock. The precipitation will not come unwelcomed however, since the Philadelphia area is running about 5.75 inches below normal, putting us in the "Moderate Drought" condition, according to the U.S Drought Monitor.
After near 90-degree weather earlier in the day, skies will remain partly cloudy and temps will "cool" into the lower 60's. For reference, the normal high temperature for this time of year is 64-degrees. An airmass change will occur overnight, so there is a very isolated chance of a quick shower or even a rumble of thunder. The rebound tomorrow won't be as bad, with highs reaching in the upper 70's to near 80-degrees. Tomorrow will be cooler, and a bit breezy as well, with winds coming from the northwest. The possibility of fire danger will be up again tomorrow.
Wednesday will be even cooler than Tuesday. Skies will feature clouds and sun, both Wednesday and Thursday. Friday will start to see the change in our pattern. Clouds will increase throughout the day with showers moving in towards the evening. With this persistent system, showers will be light in nature and scattered, however the greatest intensity and most persistent showers will be on Saturday. Temperatures will also be much lower each day in the weekend.
Showers start to taper off towards the beginning of next work week, however some models indicate the temperature may be even lower than currently indicated. The next few days after that may also remain overcast and dreary and we'll finally get some substantial rain in the rain bucket.