Indianapolis broke its daily high-temperature record Monday, Oct. 12, and could set another record Tuesday as unusually warm weather continues, National Weather Service meteorologist Casey Crosby said. The heat is expected to be short-lived. Thunderstorms and then frost are in the forecast for Indiana later this week, a sharp turn that reflects the state’s changeable fall weather. The forecast signals a rapid shift from record warmth to conditions cold enough for frost. The available forecast details did not specify temperatures or when and where frost is expected.