High pressure will be in full control throughout the New York City and Philadelphia metropolitan areas through tomorrow morning. Chilly conditions are expected today due to the high pressure system with temperatures struggling in the lower to mid 40's for highs. With winds from the northwest at 10 to 15 mph, wind chills will remain in the 30's through the day.
High pressure will exit by tomorrow morning leading to an increase in cloud cover as temperatures fall into the lower 20's to lower 30's for lows. Clouds will increase through the day as winds back to the southwest at 5 to 15 mph. Temperatures will rebound into the mid 40's to lower 50's for highs.
Tomorrow night, an area of low pressure will bring heavy rain into the Philadelphia and New York City metropolitan areas. Rainfall amounts will range from one to two inches with locally higher amounts. This storm is going to move quickly with rain starting after 9 p.m. tomorrow and ending by 5 a.m. on Wednesday.