 1-0-2-3, KRMG Tulsa's News and Talk has Tulsa's most accurate and dependable forecast. A heat advisory remains in effect until 8 o'clock this evening. Also, a heat advisory for tomorrow from noon to 8 p.m. Tonight, clear with a low in the upper 70s. Tomorrow, sunny and hot. 1-0-3, the high, the heat index topping at 1-12. Tuesday, look for a heat index of 1-11 with a high of 103. Next chance of showers for Tuesday night. Right now in Tulsa, it's 98.