National Weather Service United States Department of Commerce
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Last Map Update: Mon, Sep 22, 2025 at 4:54:11 am MST

Showers with some occasional embedded thunder will affect mostly southeast CA and southwest AZ this morning with the bulk of the activity diminishing by around noon. Very localized additional rainfall amounts of a 0.50" or more may lead to some minor flooding of area roadways in eastern Imperial County and southwestern Arizona.
After some lingering shower activity today, drier and warmer conditions are expected mid-week. The hottest day should be Wednesday with lower desert highs between 103-107°F, which would be near the daily record for Phoenix. A weather system re-entering the region late week may bring another round of shower and thunderstorm chances across by Thursday into Friday.

 

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