Multiple weather systems are leading to terrifying forecasts for most of the US as people head out trick-or-treating on Halloween night. Multiple layers and winter coats will also be a necessity for some in addition to kids’ Halloween costumes, while record heat is possible for others.

On Halloween night, a fearsome low-pressure system will move across the Great Lakes, dragging a dangerous cold front across the Midwest, the Lower Mississippi Valley and the western Gulf Coast. Demons and goblins may have to dodge a few raindrops early this evening in the Midwest and Mid-Mississippi Valley. This includes Boos, Illinois, and Black Cat, Ark.

Showers and thunderstorms will accompany most people in the Great Lakes, Ohio and Tennessee valleys and the western Gulf Coast. Towns likely to have a drenching night include Devils Elbow, Mich., Dead Man’s Crossing, Ind., Bloody Corners, Ohio, Transylvania Beach, Ky., Screamer, Tenn., Bloody Springs, Miss., Treat, La. and Chocolate Bayou, Texas.

It will be a wild night for far northern Wisconsin and Michigan’s Upper Peninsula as temperatures will be cold enough for light to moderate sleet or a mix of rain and snow. Any new accumulation of snow that falls during trick-or-treating will be minimal. However, snow from earlier in the day could reach 4 to 8 inches in some areas! These places may need to pair those Halloween costumes with snow boots, including Witch Lake, Michigan.

Another low pressure system will lurk over the northwest. Rain showers will drench all witches and warlocks in the lower parts of the Northwest, northern California and the northern Rockies. Meanwhile, snow will fall on higher elevations. However, mainly small or no accumulations are expected. A soggy, snowy forecast is in store for places like Witch Hazel, Ore., Devils Ladder, Idaho, and Devils Den, Wyo.

It will be eerily quiet for vampires and monsters to gather their sweets for the desert southwest, most of the plains, and the east coast. Calm weather awaits cities like Death Valley, California, Pumpkin, Texas, Screamer, Ala., Pumpkintown, NC, Spook Hill, Md., Skull Run, W. Va., Bloody, NH and Deadmans Corner, Maine.

Expect brutally cold weather for much of the country. Temperatures will generally be in the 30s and 40s for the Northwest, Great Basin and Rockies through the Northern Plains, Upper Midwest and Great Lakes. Widespread 20s will send a chill down people’s spines as they head to the higher elevations of the Mountain West. These cold temperatures can be found in places like Devils Slide, Utah, Spook City, Colo., Pumpkin Center, SD, Casper, Wyo., and Devils Gap, Neb.

Dress in extra layers or bring a jacket if you’re in California, the Central Plains, or the rest of the Midwest. Temperatures will drop into the 50s and 60s, including in Slaughterville, Oklahoma.

Temperatures will be on the milder side to collect candy for the desert Southwest through the Southern Plains and the entire eastern US. Here it should be in the 60s and 70s if you go out at night, including places like Tombstone, Ariz., Slaughter Beach, Del., Deadman Landing, Florida, Skullhead, Georgia, Spiderweb, SC, Goblintown, Virginia, Hershey, Pennsylvania, and Sleepy Hollow, NY