Clear skies and bone-dry air are locked in over Phoenix this Thursday, June 18. Phoenix Sky Harbor checked in around 84°F this morning, and the afternoon high is expected to push up near 106°F. Humidity stays low and winds stay light out of the south-southwest, so it will be that classic dry desert heat that still turns dangerous fast for anyone working or exercising outside.
What To Expect Today
Temperatures are set to top out in the mid to upper 100s this afternoon, with hourly forecasts pointing to about 102-106°F by mid-afternoon. Winds should remain on the mild side at 0-5 mph from the SSW before turning westerly later in the day. A few gusts into the upper teens could kick up some dust but will not do much to cool things down around the Valley. Forecasters at the National Weather Service expect overnight lows to hang in the low 80s, which means very little relief once the sun goes down.
Heat Relief And Safety
The city’s Heat Relief Network is already in full swing. Phoenix is running a 24/7 respite center at 20 W. Jackson St., with additional daytime cooling at locations such as the Justa Center at 1001 W. Jefferson St. If you need a cool place to go or a ride to get there, you can call 2-1-1 or check the city’s listings for schedules and transportation details. Visit the City of Phoenix for up-to-date hours and site information.
Looking Ahead
Forecast models show temperatures leveling off slightly through the weekend before a strong subtropical ridge rebuilds by the middle of next week. Guidance suggests highs climbing into the low to mid 110s, with some runs even hinting at 113°F on Wednesday. That setup would raise the odds of a Major Heat Risk across the Valley, so anyone planning outdoor work or events should start adjusting schedules now. The National Weather Service is keeping an eye on the trend and may post heat watches or warnings if that hotter pattern locks in.
Takeaway
In short, expect hot, dry conditions right through the weekend with stubbornly warm nights, so shift heavy chores or workouts to the early morning, drink plenty of water, and check in on neighbors and pets. We updated our June 12 coverage with this latest outlook, and you can revisit our earlier neighborhood heat breakdown for additional context and on-the-ground impacts.
