Halloween 2026 is shaping up to be a dry and relatively mild evening across the north-eastern United States, with families in New York, Philadelphia and Washington DC expected to avoid rain during trick-or-treating on Saturday, 31 October.
The latest outlook points to settled conditions across the region, with high pressure helping to keep showers and snow away. Winds are also expected to remain light, although temperatures will fall quickly after sunset. ([weather.com](https://weather.com/2026/10/28/holiday/halloween/halloween-trick-or-treat-weather-forecast))
Halloween weather forecast for the Northeast
Afternoon temperatures should reach the 60s Fahrenheit in much of the area before becoming noticeably cooler during the main trick-or-treating period, typically between 6pm and 8pm.
New York City is forecast to reach the lower to middle 60s, with overnight temperatures falling to about 50F. Philadelphia could see highs in the middle to upper 60s before temperatures drop into the middle 40s overnight.
Washington DC is expected to have a bright, comfortable day with temperatures near 66F, followed by an evening in the 40s. The National Weather Service’s Baltimore-Washington office is forecasting mostly sunny conditions and a high in the middle 60s on Saturday. ([weather.gov](https://www.weather.gov/lwx/eol))
The wider Mid-Atlantic is expected to remain dry through Halloween, with the next meaningful chance of rain arriving later in the weekend or early next week as a new weather system moves into the region. ([forecast.weather.gov](https://forecast.weather.gov/product.php?issuedby=LWX&product=AFD&site=RLX))
Parents planning longer walks should prepare for a sharp contrast between the mild afternoon and the colder air after dark. A jacket or thermal layer beneath a costume is likely to be more useful than an umbrella.
Costumes with room for warm clothing underneath could help children stay comfortable, particularly if celebrations continue into the later evening.
