It's been an extremely warm and dry winter, but the Phoenix area is in for a cooldown and maybe even some rain this week.
Temperatures in Phoenix so far in February have averaged about 8 degrees above normal, but at or below-normal temperatures are expected for the rest of this week. The National Weather Service forecasts high temperatures will drop to the 60s or low 70s starting Tuesday.
There is a slight chance of rain starting Wednesday, but the best chance for precipitation will be on Friday.
Since late August, Phoenix Sky Harbor International Airport has had only 0.01 inch of rain. National Weather Service data shows the Phoenix area would typically accumulate almost 4 inches of rain in that timeframe. The U.S. Drought Monitor reports about 92% of Maricopa County is now in an extreme drought.
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A record-strong El Niño event developing in the Pacific Ocean could bring much-needed moisture to Arizona in the months ahead, but a wet winter is not guaranteed.
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The variable climate patterns in the Pacific Ocean are associated with changing weather patterns globally. UA professors contributed to a study that found they are growing more extreme as greenhouse gas emissions are contributing to climate change.
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The park remains open despite some trail and campground closures, but park staff are issuing conservation efforts after Transcanyon water pipeline was damaged.
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This year’s extremely hot summer immediately followed the hottest spring on record and hottest winter on record. That puts 2026 on-track for the hottest year-round temperature on the books in Phoenix.
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Grand Canyon experts say the recent deadly flash floods in Bright Angel Creek were not unusual, but a wildfire burn scar and major manmade infrastructure in the area changed things.