Extreme heat grips Yuma and Imperial Valley this week

YUMA, Ariz. (KYMA, KECY) - A dangerous heatwave is intensifying across the Desert Southwest, with Yuma and the Imperial Valley expected to see triple-digit highs climb into the 115-degree range by midweek far above seasonal averages.

The National Weather Service (NWS) has issued Extreme Heat Warnings for both regions through Friday, urging residents to take precautions as temperatures soar 10 to 15 degrees above normal.

In Yuma, highs are forecast to reach at least 114 to 116 degrees, while El Centro may push 117 or higher by Thursday.

"This is a significant and prolonged period of heat that could threaten public health," the NWS said in its latest forecast discussion.

Tuesday marks the start of the most intense stretch, with Wednesday and Thursday shaping up to be the hottest days. Overnight lows will offer little relief, lingering well above 80 degrees in both regions.

This level of heat brings the potential to challenge or break longstanding daily records. In Yuma, the record high for August 6 is 115 degrees, set back in 1995. El Centro's record for that day is 114, last reached in 2018.

Meteorologists say a strong ridge of high pressure building over the region is to blame, and while some moisture is expected to return to southeastern Arizona, Yuma and the Imperial Valley will remain dry with no monsoon relief in sight.

Officials urge residents to stay indoors during peak heat, hydrate often, and check on vulnerable populations. Pets and children should never be left in vehicles, where temperatures can become lethal within minutes.

The current heat warning will remain in effect through 8 p.m. Friday. For updates, forecasts, and heat safety tips, visit our website.