Trick-or-treaters across the US may need to prepare for different weather conditions this Halloween. In the Northeast, there may be damp, chilly conditions due to a cold front passing through the region, and some areas may even see the first snow flurries of the season. Meanwhile, the Southeast is expected to remain predominantly dry and warm, although some locations may see a decline in temperatures accompanying cloudier conditions from early to midweek. The northern Plains will experience bone-chilling cold, with temperatures ranging between 10 and 20 degrees below historical averages for late October. On the other hand, the Western states will generally trend cooler and drier, with a sweater needed for any residents of Casper, Wyoming, attending pumpkin-picking festivities or costume parties. Happy Halloween! https://www.accuweather.com/en/weather-forecasts/halloween-trick-or-treating-forecast-teeth-chattering-chill-for-some-damp-weather-for-others/1589968