Warming up this week, Ozone Health Watch today

Posted: Updated:

PHOENIX -- Get out and enjoy one last day of below-average temperatures before the heat arrives!

Valley temperatures will top out this afternoon near about 90 degrees under sunny skies.  Winds should be generally weaker than yesterday in the deserts of the state, although a red flag warning continues today in the southeast and northeast portions of Arizona. 

Today's mild weather follows a low-pressure system that brought windy conditions yesterday, along with light rain in Northern Arizona. 

Cool air remains today, although those winds did transport ground level ozone into the Valley, prompting an Ozone Health Watch today.  Ozone is expected to approach unhealthy levels.  Valley residents are urged to reduce driving or carpool, refuel after dark and avoid gas-powered equipment. 

High pressure begins to build over our region tomorrow, leading to warmer temperatures by the end of the week. 

Friday is expected to be the warmest day this week, with Valley highs near 101 degrees. 

Memorial Day and the holiday weekend are looking warm and dry, but triple-digit heat is looking less likely.  A dry storm system in our region will help to lower temperatures. 

Look for highs Sunday and Monday in the mid-90s with light winds.