Phoenix residents might be reaching for their umbrellas today, with the National Weather Service predicting a 50 percent chance of showers primarily between 11 am and 5 pm. The extended forecast for Phoenix AZ, indicates an increase in cloud coverage and a comfortable high of 71 degrees, with light winds shifting from calm to a gentle west-southwest breeze at around 5 mph in the morning. Tonight, the skies are expected to shed their gray with forecasts showing mostly clear conditions and a low of around 50 degrees, the northwest wind calming as the evening progresses.