National Weather Service United States Department of Commerce
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Last Map Update: Wed, Sep 3, 2025 at 2:30:12 am MST

Due to abundant moisture and cloud cover, temperatures will dip below normal by the end of this week with lower desert highs falling into the 90s with lows in the 70s.
Isolated thunderstorms will be possible Wednesday afternoon and evening, primarily across the AZ high terrain and the lower deserts of south-central AZ. Some storms will be capable of producing gusty wind near 35 mph, with higher gusts possible with stronger cells. Patchy blowing dust may also accompany these strong outflow winds.
Increasing tropical moisture will yield enhanced shower and thunderstorm chances across much of the region. Some storm may be strong, producing gusty winds that could yield areas of blowing dust.
It was the 5th hottest August on record for Phoenix with an average monthly temperature of 98.2 degrees. Yuma and El Centro both had monthly temperatures that were slightly above average. Rainfall varied across the region with both El Centro and Yuma receiving well above normal rainfall, whereas Phoenix had well below normal rainfall.

 

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