Tucson weather: Storm system to bring cooler temps, rain to the east

A weak pressure system moving over southern California will reach Arizona today and tomorrow morning, causing isolated to scattered showers east of Tucson through Wednesday.

Rainfall amounts will generally be less than 0.10 of an inch in the valleys and slightly more in the mountains.

While the metro Tucson area might not see any rain, overnight temperatures will continue to drop over the next several days.

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High: 68

Low: 50