Phoenix Forecast to Reach 40.2°C, Triggering Heat Alert
An automatic high-severity heat alert has been issued for Phoenix, United States, for September 14, 2026. The forecast indicates that the maximum temperature is expected to reach 40.2°C, crossing the established threshold of 40°C.
The alert was generated automatically by the forecasting systems of wweather1.com. The system triggered the notification when the forecasted maximum temperature (tmax) for Phoenix was calculated to exceed the designated safety threshold.
The event is scheduled to begin on September 14, 2026. The predicted high of 40.2°C represents a high-severity heat event for the area, given that it surpasses the standard 40°C limit.
Wweather1.com's automated alert system monitors forecast metrics continuously to identify potential extreme weather events. This specific alert relies entirely on the platform's proprietary forecast data.