PHOENIX -- Unseasonably warm temps will continue across Arizona this week. In the Valley, highs will be in the 80s with overnight lows in the 50s.
The weekend will signal a dramatic change.
By Sunday, a cold front brings scattered rain and snow showers to the state and colder temps.
By Monday, the chances for snow and rain increase. Mountain snow totals could be in the 8- to 15-inch range, but it's not quite a lock yet.