Phoenix is starting Monday under clear skies and temperatures around 81 degrees, but the calm morning will give way to another near-triple-digit afternoon. The high is expected to reach 99 degrees, with east winds gusting as high as 25 mph before easing later in the day.
Monday Starts Breezy Before Heat Takes Over
Monday will stay sunny and dry across the Valley, with east winds of 5 to 15 mph and stronger gusts during the morning and early afternoon. The National Weather Service Phoenix says gusts across south-central Arizona could reach 20 to 35 mph, particularly before midday.
The forecast puts Monday in the upper 90s to low 100s, with Wednesday highs of 98 to 102 degrees across the lower deserts of south-central Arizona. Conditions are generally dry through Saturday, though a possible shower near the White Mountains Wednesday is an exception; slight shower and thunderstorm chances are forecast Sunday in the high terrain of eastern Arizona.
Midweek Heat Peaks Near 101 Degrees
Tuesday should be sunny with a high near 99 and lighter winds, followed by the hottest part of the week Wednesday and Thursday. Wednesday’s high is forecast near 101 degrees, with Thursday close behind at 100, while overnight lows remain in the upper 70s.
The dry pattern is expected to hold through Friday, when Phoenix should reach about 98 degrees. Winds will generally stay light through midweek but may become gustier again Friday.
Mostly Dry Through Saturday, With High-Terrain Storm Chances Sunday
Mostly dry weather is expected through Saturday, with a possible shower near the White Mountains on Wednesday. Slight shower and thunderstorm chances are forecast Sunday in the high terrain of eastern Arizona.
For outdoor plans, the early morning and evening will be the more manageable windows, especially during the midweek heat peak. Water, shade and regular breaks will matter even under clear skies, because Phoenix’s October calendar is not yet ready to act like fall.
