Phoenix is in for an early spring-style warmup this week, with sunshine pushing afternoon highs steadily from the low 80s into upper 80s and even the low 90s. Sunday tops out near 82°F, then the heat ramps up quickly into the mid-80s Monday and early Tuesday before edging toward the upper 80s to around 90°F by mid to late week. Skies stay dry, and winds remain mostly light, although some easterly gusts could make mornings feel a bit brisk.
What To Expect This Week
High temperatures are expected to climb from around 82°F on Sunday into the mid-80s on Monday and Tuesday, then peak in the upper 80s to low 90s by Wednesday through Friday across many lower-desert neighborhoods. Overnight lows should hold in the mid-50s to low-60s, with no measurable rain in the forecast. Forecasters highlight the warming trend and a potential record watch in their latest discussion, according to the National Weather Service Phoenix.
Winds And Fire Weather
Easterly and east-northeast winds will be most noticeable in the mornings, with valley gusts around 20 to 25 mph and gusts up to 30 to 35 mph possible over higher terrain east of Phoenix. Winds should ease back in the afternoons. Afternoon relative humidity is expected to dip into the 10 to 15 percent range, which raises the risk for spot fires and makes outdoor burning a bad idea. Forecasters have not issued any watches or warnings for the valley at this time.
Heat Safety And Local Resources
With afternoons behaving more like April, it is a good time to lean on basic heat safety: drink plenty of water, avoid long stretches of outdoor exertion in peak sun, and check on vulnerable neighbors and pets. The City of Phoenix lists cooling center locations and hours for anyone who needs air-conditioned relief. Outdoor workers should schedule the heaviest tasks for early morning or evening and bring extra water.
Forecasters will keep an eye on any changes to advisories as the week unfolds, so it is worth checking updated local forecasts before locking in outdoor plans. Expect the hottest afternoons later in the week and plan around that climb into near-90 territory.
