Be sure to wear sunscreen and a hat as you head outdoors today. Temperatures are very high near 90 with a heat advisory in effect for the Southern Tier and the Finger Lakes region from 11 AM to 7 PM. The UV index is also very high, ranking in at a 9.1. Even with cloudy conditions, you can get a burn in just 15 minutes without sunscreen. Stay hydrated and take it easy out there.