While significant energy will be diving southeast across the Ohio Valley, and moisture will be located over the Gulf stream, eventually resulting in storm development off the New England coastline (check back for posts on that), showers are unlikely to make it farther east than the Western Finger Lakes of New York Friday evening, meaning trick-or-treating looks good, albeit cool, for most of the Northeast. A developing onshore wind flow should mean increasing clouds Friday, and mostly cloudy or overcast skies Friday night in Eastern and Central New England, but these clouds are expected to be shallow enough to preclude shower or drizzle development during the early to middle evening hours. Below, you'll find the precipitation forecast from 5-8 PM Friday evening (NAM guidance) and, on the right, the temperature forecast for 8 PM to help plan what to wear. The only possible change I could see would be if we have to introduce patchy drizzle near the coast with the onshore wind, but right now, we look to steer clear of that.
Happy Halloween!
