Phoenix Ties Record High Temperature at 116 Degrees on August 1

Phoenix tied its all-time record for the hottest temperature ever recorded on August 1 when the city reached 116 degrees on Saturday, August 1, 2026. This heat spike is part of a broader Western U.S. heat wave that has triggered extreme heat warnings and wildfire evacuations across the region, according to the Los Angeles Times.

The National Weather Service issued extreme heat warnings for several areas as the heat wave pushed temperatures to dangerous levels. Officials warned residents of a heightened risk for heat-related illnesses as the system moved through the Southwest and into the Pacific Northwest.

Heat Wave Impact in Phoenix and Southern California

The 116-degree reading in Phoenix represents a tie for the daily record for August 1. According to the Los Angeles Times, this extreme temperature is a primary indicator of the intensity of the current weather system affecting the region.

In Southern California, the National Weather Service maintained heat warnings to alert the public to the potential for heatstroke and exhaustion. These warnings are designed to prompt residents to limit outdoor activity and seek air-conditioned environments during peak heating hours.

Wildfire Evacuations and Regional Risks

The combination of record-breaking temperatures and low humidity has increased the volatility of wildfire conditions. The Los Angeles Times reports that the heat wave has led to wildfire evacuations in parts of the Western U.S. as dry conditions allow fires to spread more rapidly.

The weather system is expected to continue affecting the Pacific Northwest through Sunday night, August 2, 2026. Meteorologists are monitoring the movement of the heat dome to determine when temperatures will begin to subside in the affected states.

Public health officials continue to urge residents in the affected areas to monitor for signs of heat-related illness, which can include dizziness, nausea, and confusion. The National Weather Service emphasizes that the risk remains high as long as the extreme heat warnings are in effect.