Phoenix is waking to clear skies and temperatures near 88 degrees Sunday morning, but the Valley’s brief window of relief will disappear quickly. The high is expected to reach 105 degrees, followed by another 106-degree afternoon on Labor Day.
Sunday Heat Builds Fast
Sunday will stay mostly sunny with west-southwest winds of 0 to 10 mph and gusts reaching 20 mph. Rain is highly unlikely, with only a 3% chance in the forecast, and the latest outlook is slightly hotter than Hoodline’s previous forecast, which called for a 104-degree high.
Sunday night will remain partly cloudy with a low near 85 degrees, so the city will get little overnight recovery. Winds could gust up to 25 mph from the west-northwest, especially during the evening.
Labor Day Brings Another 106-Degree Afternoon
Monday’s Labor Day forecast calls for mostly sunny skies, a high near 106 degrees and west-northwest winds of up to 10 mph. Tuesday is expected to be just as hot, with another sunny 106-degree high and a low near 86 degrees, according to the National Weather Service Phoenix.
The weather service describes temperatures through the workweek as near to a few degrees above normal, with minor to moderate heat risk across the region. No watches, warnings or advisories are posted for Phoenix in the current forecast, but a string of 100-degree afternoons still makes midday outdoor plans a bad bargain.
Storm Chances Increase Late Week
A slight chance of showers and thunderstorms arrives late Tuesday night and continues at low levels Wednesday and Thursday. Friday brings the first more noticeable chance, at 40%, while the high still reaches 103 degrees; Saturday could ease to 99 with a smaller storm chance.
For Sunday through Tuesday, the safest window for exercise, errands and outdoor work will be early in the day or after sunset. Drink water regularly, take breaks in air conditioning or shade, and check on anyone who may not have reliable cooling as overnight temperatures remain in the mid-80s.
