PHOENIX (AZFamily) — Big weather changes are on tap for Arizona this week as a fall storm system approaches the region. Friday and Saturday are First Alert Weather Days .

After a weekend of record warmth, temperatures drop slightly today. Look for a Valley high of 88 degrees under sunny skies. That’s 9 degrees above normal for this time of year in Phoenix.

Breezy conditions are possible today, with easterly winds of 5 to 15 mph in the Valley. Temperatures drop slightly tomorrow through Thursday to the mid 80s. The bigger change arrives Thursday night into Friday.

A storm system will approach the Desert Southwest late this week, bringing rain chances to the Valley Thursday night through Saturday morning. Rain chances are near 30% Thursday night and near 50% on Friday. Showers are like

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