Phoenix weather: Heat wave coming

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by April Warnecke

Bio | Email | Follow: @AprilWarnecke

azfamily.com

Posted on June 24, 2013 at 9:31 AM

Updated Monday, Jun 24 at 9:40 AM

HOENIX -- Temperatures will start off this week in normal territory, meaning the heat you can typically expect for mid-June. But later this week, the Valley is in for a major heat wave. 

Phoenix will see some of the hottest temperatures of the year thanks to an unseasonably strong ridge of high pressure. 

It starts to build over the cesert Southwest on Wednesday and strengthens through the weekend. 

Look for highs today and tomorrow near 106 degrees, 109 degrees by Wednesday, and near 116 Friday through Sunday. 

Skies should stay mostly clear through Friday, but over the weekend that strong pressure could begin to draw in some monsoon moisture. There will be a chance for weekend high-based thunderstorms in the high country, particulary Eastern Arizona, but the Valley will just get some clouds. Those clouds will keep our overnight temperatures a bit warmer, with low temperatures of near 90 degrees forecast by Saturday and Sunday mornings.

Excessive Heat Warnings are likely to be issued by the National Weather Service as we get closer to mid-week. 

Today, there is a Red Flag Warning for much of the high country, including Yavapai County near the Doce Fire. Look for strong southwesterly winds and very low relative humidities 10 a.m.-8 p.m. 

Conditions should improve gradually over the next few days as an area of low pressure passing to our north moves further away from the southwest. 

But as high pressure builds in next, temperatures are set to skyrocket to near-record levels nearly statewide from Friday into the weekend. 

Get the latest forecast for your neighborhood

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