Indianapolis, IN – Expect a sunny Sunday in Indianapolis with highs reaching 81°F, but be prepared for gusty winds by the afternoon. According to the National Weather Service, wind speeds will range from 9 to 14 mph, with gusts potentially reaching up to 22 mph, especially in areas around I-65. While Sunday will be bright and clear, the high winds pose a risk for those on the road and outdoor workers. Monday will bring calmer weather, with temperatures cooling down to 69°F. The winds will ease slightly, making outdoor conditions safer.