My Personal Weatherman™
Flash Flood Watch for Long Island
A Flash Flood Watch is in effect for Long Island from midnight tonight through Monday morning. Rainfall amounts of 1 to 3 inches are expected. Wednesday still looks to be the best day of the week with temperatures only in the mid to upper 70's to go along with low levels of humidity. The following map is from the NAM model, and it shows rainfall totals through tomorrow afternoon:

Image from tropicaltidbits.com