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Carving out a Halloween pattern change - KVOA | KVOA.com | Tucson, Arizona

Carving out a Halloween pattern change

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TUCSON - Greeting ghosts & goblins for Halloween? Cooler temps & even a shower chance.

Before that, highs peak in the upper 80s to low 90s through Monday. According to 4WARN Meteorologist Jeff Beamish, high pressure moves in from the Pacific Northwest coast this weekend. Sunday's forecast high of 90° could end up being the last 90° day of 2017.

A pair of storm systems are queued up for next week. The first system arrives late Monday into Tuesday, possibly producing a few isolated showers. A Halloween washout appears unlikely, with rain chances Tuesday evening at 10%.

Storm system #2 advances into Arizona during the Wednesday/Thursday timeframe. This second system may also bring a few showers.

While rain chances are slim, odds heavily favor an Autumn cool-down next week. Daytime highs drop from the upper 80s Monday to the mid 70s next Thursday.

Watch Jeff for a complete look at your 4WARN extended forecast today at noon. Follow Jeff's weather updates on FacebookTwitter and his blog.

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