Erica's Answer:But lightning will not travel through glass. That's why it's safe to be in your car during a thunderstorm. You should still stay away from windows during thunderstorms for 2 reasons: 1. The window casing might be made of a conductive material, such as metal. 2. An object outside the window could be hit by lightning, and you could still get electrocuted from being in close proximity to the lightning strike.