On July 3, 2025, scattered thunderstorms developed across southern Arizona, particularly impacting the Tucson Metro Area and parts of the Phoenix Metro region. The storms, fueled by lingering moisture and stronger winds aloft, produced locally heavy rainfall, gusty winds reaching up to 35 mph, and occasional lightning. Multiple flash flood warnings were issued for Tucson and surrounding areas, with warnings extending through 4 p.m. due to ongoing severe thunderstorm activity. Radar detected clusters of storm cells moving northeast from Southern Maricopa County into Pinal County near Casa Grande. While the storms were less organized compared to the previous day, they continued to bring localized heavy rain and gusty winds. By July 4, drier air was settling in, reducing the likelihood of widespread thunderstorm activity, though isolated showers and storms remained possible over higher terrain areas east of Phoenix through the holiday weekend.