 1023 KOMG Tulsa's News and Talk has Tulsa's most accurate and dependable five-day forecast. Tonight, low around 69 degrees, heavy rain possible overnight. Tomorrow, showers and thunderstorms are likely high of 89. Monday, partly sunny, high near 86. There is a 30% chance of showers in the morning. Tuesday, clear and sunny skies, high near 87. Wednesday, sunny skies continue, high near 90. And Thursday, sunny skies again, high near 92.