Phoenix, Arizona – Record warm overnight temperatures are keeping conditions elevated, prolonging dangerous heat across the Southwest.
According to the National Weather Service Phoenix, new record warm low temperatures were set Friday morning at Phoenix and El Centro, surpassing previous records by 2 to 5 degrees. Phoenix recorded a low of 69°F, well above its normal low of 55°F and higher than the previous record of 64°F set in 2017.
El Centro also set a new record warm low at 65°F, exceeding its prior record of 63°F from 2007. In Yuma, temperatures dipped to 65°F—just 2 degrees shy of the record warm low of 67°F set in 2004.
The unusually high overnight temperatures limit cooling relief and can increase heat-related risks, especially as daytime highs continue trending well above seasonal averages.
The National Weather Service said the Extreme Heat Warning remains in effect, with afternoon temperatures expected to stay significantly elevated. Officials emphasize that sustained warmth overnight can compound heat stress, particularly for vulnerable populations without access to cooling.
These conditions may affect early-morning commuters, outdoor workers, and students, as the lack of overnight cooling extends heat exposure into the start of the day.
Additional updates are expected as forecasters monitor ongoing temperature trends and potential impacts across Arizona and southeastern California.
This article was produced by a journalist and may include AI-assisted input.
All content is reviewed for accuracy and fairness.
Follow us on Instagram & Facebook and support local independent news.
Have a tip? Message us.
