Weather Outlook

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Date & Time: 09/25/2017 7:55 AM MST

Forecaster: Henz, D.

Synopsis:
After a perfect weekend weather wise, the trend of below average temperatures will continue to start off the new week. Looking at the big picture, general troughing remains in place across the western US. The disturbance that brought our welcomed cool down over the weekend is slowly lifting east of the area. That being said, daily highs today and tomorrow should remain in the upper 80s to low 90s under generally sunny skies. Looking ahead, model guidance has a follow up system digging south into the region on Wednesday which may be able to pull enough moisture into the region to generate some storm activity across the eastern third of the state before exiting later in the work week.

For today plan on mostly sunny skies with a few passing high clouds. Afternoon temperatures will slowly climb into the 87˚F-89˚F range around the Valley with mid 80s across the higher terrain locales. Variable winds will generally remain in the 3-8mph range with localized gusts around 10-15mph this evening. Overnight lows will dip into the mid to low 60s around the urban corridor with outlying locations reaching the upper 50s under clear skies and light winds.

For tomorrow plan on a few degrees of warming around the region. Daytime highs will reach the 90˚F-93˚F range around the Valley under mostly sunny skies with a few passing high clouds. Variable winds will remain in the light category with no gusts of any consequence throughout the day. Heading into Wednesday plan on afternoon highs in the low 90s around the Valley. As highlighted above, a follow-up disturbance will arrive potentially bringing unsettled weather to the region for the second half of the work week. As of now, it looks like the Valley will stay dry with activity limited to far eastern AZ. More on this in tomorrow’s Outlook.

Summer Heat Products

Forecast Today Tomorrow Day 3
Heat Risk None Low Low
Air Quality (O3) Moderate Moderate Moderate

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