Phoenix is waking up to clear skies and temperatures around 84 degrees Saturday, with a sunny afternoon headed toward 105. The weekend will stay dry and mostly calm, but the desert heat is about to turn up sharply.
Sunday’s high is forecast near 106, followed by 110 degrees Monday and 111 Tuesday. The National Weather Service expects highs around 110 through Thursday and another 111-degree reading Friday, while overnight lows climb from the mid-80s into the upper 80s and near 90.
Extreme Heat Watch Starts Monday
An Extreme Heat Watch is in effect for the Phoenix metropolitan area from Monday morning through Friday evening, with afternoon temperatures of 109 to 113 degrees and overnight lows of 88 to 92. Officials say the prolonged heat could bring Major HeatRisk, meaning heat-related illness becomes more likely with extended outdoor exposure.
Rain is not expected to provide much relief: daily chances remain in the single digits through Thursday, with only a slight chance of showers and thunderstorms after 5 p.m. Friday. Light winds of 0 to 5 mph and very dry afternoon air across the lower deserts will make shade and air conditioning especially important.
Plan Around The Hottest Hours
Residents should move strenuous outdoor work and exercise to the early morning or evening, drink plenty of water, wear lightweight clothing and take frequent breaks in shade or air conditioning. Anyone showing signs of heat exhaustion should be moved to a cool place, while heat stroke requires an immediate 911 call.
Phoenix’s 2026 heat-relief network includes a 24/7 respite center at 20 W. Jackson St. and a cooling center at 1001 W. Jefferson St. open from 3 to 9 p.m. daily, according to the City of Phoenix. Residents can call 2-1-1 for help finding cooling locations, transportation, water and other heat-relief services.
