FORECAST: Record-breaking heat every day!

PHOENIX – Our unprecedented heat wave just won’t let up!

A Excessive heat warning remains in effect for the Phoenix metropolitan area and the lower deserts of western and southwestern Arizona until 8 p.m. Friday.

We stay inside ABC15 Weather Action Mode through Friday as a reminder to take action in these dangerously hot temperatures. Stay hydrated, limit time outside in the afternoon hours, and never leave children or pets in the car, no matter how quickly the errand is run.

This heat wave is absolutely breaking records and that trend is set to continue, with highs in the Valley reaching 108 to 112 degrees every day during the first week of October.

The average highs considered “normal” for this time of year are in the mid-90s.

Phoenix recorded its last day over 115 degrees this past Saturday, reaching 117 degrees! This was also the hottest September day ever.

Now we are likely to experience the hottest October day ever as we are expected to reach 112 degrees on October 1st! To date, the highest temperature ever recorded in Phoenix was 107 degrees in October.

This will also push back the youngest 110-degree day ever recorded in Phoenix. This record was previously set on September 19, 2010, but we have broken this record every day since last week. We might not reach 110 degrees until October 4th this year!

Luckily our nights are getting longer so we aren't expecting lows of 90 degrees. Nighttime temperatures will dip into the low 80s across the valley, but even that is exceptionally warm for this time of year and we could continue to set new daily record low temperatures this week.

Temperatures will gradually drop through the weekend, but our highs could still be record-breaking, topping 105 degrees every day through the week of October 7th.

Our drought has worsened in recent months due to the hotter and drier monsoon we have been experiencing. There are only a few days left to get buckets of rain before the monsoon season officially ends on September 30th, and our chance of rain is slim to none across Arizona.

Phoenix received just 0.74 inches of rain this monsoon season, meaning it will be the seventh driest monsoon on record. Our 30-year average (which is considered our normal rainfall amount) is 2.43 inches. However, it is important to remember that this represents a decrease from the previous 30-year average of 2.71 inches (from 1981 to 2010) as the climate in our valley continues to become hotter and drier.

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Sky Harbor Official Rainfall So Far in 2024: 4.54 inches (-0.79 inches from average)

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Daily rainfall reports from across the valley are available Here.

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PHOENIX IS GOING DRYER – LOWER PRECIPITATION AVERAGES NOW

Average monsoon rainfall in Phoenix (1981–2010): 2.71 inches of rain

NEW Phoenix average monsoon precipitation (1991-2020): 2.43 inches of rain

Average annual precipitation in Phoenix (1981–2010): 8:03 inches of rain

NEW Phoenix Average Annual Rainfall (1991-2020): 7.22 inches of rain

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View the full 7-day forecast

Arizona Interactive Radar