There some events that indoors for kids including:

Toddler Trick or Treat at the National Museum of Play at the Strong: October 31st. Halloween activities and goodies for the littlest trick-or-treaters. Meet favorite storybook characters, dance to Halloween tunes, and play games.

Trick-Or-Treating at McKinley Mall: October 31st. Kids under 12 are invited to McKinley Mall for free indoor trick-or-treating from 6 - 8 pm! Lines forming at the North entrance near Guest Services and the South entrance near the Food Court.

If you're handing out candy at your house, be sure your house is well lit and the path to your door is safe of anything that could cause someone to fall.