Cutting down a dead tree is always strongly advisable. Aside from being an eyesore, a dead tree can be extremely hazardous, especially when it’s near people or structures. Even if the tree isn’t near your home, it can still harbor pests and diseases that can potentially spread to nearby plants and homes.

Lightning can cause massive damage, fires, and openings for other threats like bugs or fungal diseases. Barring any large fires or explosions, it’s difficult to tell how much damage a lightning strike has done until after a thorough inspection. Contact local authorities immediately if lightning strikes a tree in your yard and it causes a fire or explosion.

It is possible to cut down a tree on your property yourself, but it is generally not recommended unless specific conditions are met. You should only consider this project if the tree is small (e.g., under 4-5 inches in diameter and short enough that you don't need a ladder to reach the branches), and you are experienced in handling a chainsaw. The tree must also be located far from any power lines, fences, homes, or other structures. Even for small trees, the work can be dangerous, and it's always advisable to have a spotter to ensure the tree falls correctly and no branches fall on you.

For any tree that is large, requires a ladder to access, or is near electrical lines or structures, you should always hire a professional. Attempting to remove a large tree yourself is extremely dangerous, poses a risk of serious injury, and could result in significant damage to your property.

Before any tree removal, it's also important to check your local and state regulations to ensure the tree is not historic or otherwise protected by your city.

Some trees will bounce back just fine, and others will struggle and possibly die. Evergreens, for instance, have a very difficult time recovering after droughts and usually die after periods of extreme dryness. Usually, you’ll have to just wait and see—if the drought occurs in wintertime, it’s possible that your tree will recover during the gentler springtime.