The Week Ahead: Triple Digits and Peak TemperaturesOur hottest day of the week seems to be Wednesday, and we could possibly see some rain overnight Thursday. Your Amarillo forecast looks a lot like it has the past few weeks:Tuesday : Hot with a high of 100. Chance of thunderstorms overnight. Chance of thunderstorms overnight. Rain chances continuing overnight with a low of 71.: Mostly Sunny with a slight chance of Thunderstorms and a high of 97.