Triple-digit heat next week

Posted: Updated:
PHOENIX (3TV/CBS 5) -

Very warm temperatures and sunshine are in the forecast Sunday before a passing weather system brings breezy winds and a slight cool down.

A low pressure system will track out of California and toward Nevada Monday. This weather feature will not bring any rain, but it will bring isolated dry thunderstorms along the Utah and New Mexico borders. It will also increase clouds statewide and kick up wind gusts in northern Arizona at speeds of up to 35 mph. In the Valley, winds will reach 15 to 20 mph.

Highs will drop a few degrees Tuesday before high pressure builds over the Intermountain West and a major warm up takes shape, Valley highs will reach triple-digits by Friday, maybe even as early as Thursday. Hot weather will persist through the holiday weekend.

For Phoenix, look for a high of 97 Sunday and Monday, 94 Tuesday, 95 Wednesday, 99 Thursday, 103 Friday and 105 Saturday. Lows will be in the 70s. The seasonal average high for this time of the year is 96.

Click/tap here to download the free azfamily mobile app.

Copyright 2018 KPHO/KTVK (KPHO Broadcasting Corporation). All rights reserved.


  • Arizona's Family Weather BlogMore>>

  • Don't miss the Perseid meteor shower this weekend

    Don't miss the Perseid meteor shower this weekend

    Tuesday, August 7 2018 1:05 PM EDT2018-08-07 17:05:19 GMT
    (Source: NASA)(Source: NASA)
    Don't miss the Perseid meteor shower this weekend. (Source: NASA)Don't miss the Perseid meteor shower this weekend. (Source: NASA)

    This weekend, once the sun sets, head outside and check out the Perseid meteor shower.   

    More >

    This weekend, once the sun sets, head outside and check out the Perseid meteor shower.   

    More >
  • Before you had live radar in the palm of your hand, there were weather kiosks

    Before you had live radar in the palm of your hand, there were weather kiosks

    Tuesday, August 7 2018 1:05 PM EDT2018-08-07 17:05:09 GMT
    (Sources: National Archives and Library of Congress)(Sources: National Archives and Library of Congress)
    (Sources: National Archives and Library of Congress)(Sources: National Archives and Library of Congress)

    The high-tech way of disseminating weather information in the late 1890s and early 1900s, we introduce the weather kiosk.

    More >

    The high-tech way of disseminating weather information in the late 1890s and early 1900s, we introduce the weather kiosk.

    More >
  • Wet winter on the way?

    Wet winter on the way?

    Wednesday, August 1 2018 7:31 PM EDT2018-08-01 23:31:42 GMT
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)
    (Source: 3TV/CBS 5)(Source: 3TV/CBS 5)

    It's the middle of summer and our minds are on the monsoon and this brutal Arizona heat. But if we allow ourselves to daydream about winter a little bit, there might be something to get excited about.

    More >

    It's the middle of summer and our minds are on the monsoon and this brutal Arizona heat. But if we allow ourselves to daydream about winter a little bit, there might be something to get excited about.

    More >