You might find insurers that offer car insurance for one or two days. MoneyGeek cautions you against them. Usually, the shortest car insurance policy you can purchase lasts six months, so those offering brief coverage may be insurance scams.
Car insurance follows the car, not the driver. If you’re using your friend’s car, their policy may cover you as long as you have your friend’s permission to use the vehicle.
For other situations, you may need to purchase coverage. Although insurers don’t offer weekend car insurance, you have several options for temporary coverage. One is buying a policy and canceling it early. Another is purchasing rental car insurance instead of a standard policy.