 We'll make a believer out of you. 1023 KRMG has Tulsa's most accurate and dependable forecast. Some scattered showers and thunder will continue this evening, and that's going to really push temps back down. Only 89 tomorrow's high, most of the rain in the morning. 88 Thursday, 89 Friday by Saturday, up to 90. But rain and thunder, cooler Sunday, 85 the high.