Scorching Heatwave Persists Over Valley of the Sun

Stubborn high pressure continues to dominate Arizona’s weather, resulting in exceptionally high temperatures this week.

PHOENIX — The heat wave shows no signs of relenting. On Monday, temperatures soared to 107 degrees, marking the seventh consecutive day of record-breaking highs. Saturday set a notable benchmark as Sky Harbor recorded a staggering 117 degrees, the highest September temperature ever documented.

So far this summer, residents have experienced 66 days of temperatures reaching 110 or above, a record for the state. Forecasts indicate that this number will increase in the coming days, far surpassing the usual average high of 96 degrees for the Phoenix Metro area by the end of September.

Excessive Heat Warnings remain in effect for much of southern and western Arizona, set to last until at least Friday evening, Oct. 4. There is potential for these warnings to extend further into the weekend if conditions persist.

Daily high temperatures are expected to register between 108 and 112 degrees through Friday. Even the High Country, traditionally cooler, will experience elevated temperatures ranging from the 80s to 90s.

Monsoon 2024 officially wrapped up this week, and with only 0.74 inches of rainfall recorded, it tied for the sixth driest monsoon season in history. Both lowland and highland areas have seen below-average precipitation this summer, while a persistent high-pressure ridge keeps conditions dry and hot.

Looking ahead, the seven-day forecast indicates record-setting temperatures:

TUESDAY: 84/112 Record heat

WEDNESDAY: 80/108 Record heat

THURSDAY: 81/109 Record heat

FRIDAY: 81/110 Record heat

SATURDAY: 80/109 Above normal temps

SUNDAY: 80/108 Still above average

MONDAY: 80/108 Above average

Residents are urged to remain cautious, as Arizona’s weather has displayed its volatility with various severe weather incidents across the state. Videos highlighting recent thunderstorms, flooding, and wildfires can be found on our platform.

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