Yes, pellet grills can be used in cold weather, but it's important to follow a few guidelines to ensure the best experience. First and foremost, make sure that your grill is well-seasoned before using it in cold weather. This will help to prevent any problems with rust or corrosion. Additionally, make sure that the pellets you are using are compatible with your grill - some pellets may not be as effective in cold weather. Finally, keep in mind the temperature restrictions for your area - some areas may have a lower limit than others.