 meteorologist Liz McGiffin. Overnight will stay under a mainly clear sky as temperatures fall down near 60 degrees. Sunday will start out with plenty of sunshine, then temperatures will quickly rise between 100 and 105 degrees. Sunday afternoon will see an isolated chance for a shower or thunderstorm, then the chance for showers and storms increases as the week goes on. Monday will see that chance for storms in the afternoon as temperatures just fall shy of 100, closer to 90 degrees on Tuesday. Common ways to start your day.