Central Ohio Weather and Radar Fall officially arrived Sunday morning at 8:44 a.m. (autumnal equinox), but summer will hang on for one more day before a significant cool-down comes with welcome showers. Temperatures will approach 90 degrees under partly sunny skies, nearly15 degrees above normal. Clouds will increase ahead of developing low pressure and a cold front in the Midwest. Scattered showers and storms will overspread the western part of the state and move into portions of central Ohio overnight. The front will stall near the Ohio River on Monday, with the first wave of moisture shifting east during the day, creating a lull in the showers, with skies remaining mostly cloudy. Temperatures will be 10 degrees cooler, near 80 degrees, as winds shift to the northwest behind the cold front. An upper-level disturbance in the southern Plains will lift northeastward to the Ohio Valley Tuesday, bringing widespread showers and a possible storm. A cold front will follow early Wednesday, bringing an end to the rain and ushering in seasonable, drier conditions for the remainder of the week. Forecast Sunday: Partly sunny, warm. High 89 Tonight: Mostly cloudy, scattered showers, rumbles. Low 68 Monday: Early showers, cloudy, cooler. High 78 Tuesday: Showers, storms. High 78 (64) Wednesday: Early showers, clouds linger. High 77 (59) Thursday: Partly sunny. High 78 (57) Friday: Showers possible. High 79 (62) Saturday: Mix clouds and sun. High 80 (62)