Warm-up begins

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PHOENIX -- A brief but noticeable warm-up begins today.  A building ridge of high pressure will bring lots of sunshine, light winds and warmer temperatures.  It also means an extension of yesterday's ozone health watch issued by the Arizona Department of Environmental Quality

Valley temperatures will rise to the mid-90s today, and likely hit the triple-digits on Friday. 

An approaching trough of low pressure will bring breezy weather this weekend, along with a cool-down just in time for Memorial Day. 

Look for highs in the upper 90s Saturday, low 90s Sunday and mid-80s Monday.