Your Credit Card Probably Won't Cover It
Pull out any major credit card offering rental car coverage and search the benefits guide for "weather" or "act of God." You'll find hail damage explicitly excluded in a majority of policies — typically around 80% based on common policy structures. Chase Sapphire, American Express, and most Visa Signature cards classify hail as an environmental or natural event outside their coverage scope — the same category as flood, earthquake, and windstorm damage.
The exclusion exists because credit card rental coverage functions as secondary collision damage waiver, not comprehensive insurance. It's designed to cover crashes you cause, not things that fall from the sky. When travelers decline the rental counter's insurance assuming their Platinum card has them covered, they're making a bet on weather conditions they haven't checked.

