The sun sets behind one of the sunflower plots at the University of Arizona’s Campus Agricultural Center. A very hot Thursday in Tucson — 113 degrees — welcomed Friday’s official start of summer.
A scorcher of a day in Tucson welcomed Friday’s official start of summer.
The high temperature maxed out at 113 degrees, according to the website for the National Weather Service in Tucson.
A pedestrian tries to beat the heat Thursday near Hotel Congress in downtown Tucson as the day's high temperature reaches 113 degrees.
That’s hot, but below the record of 115 degrees for a June 19, that was set here in 2017. The hottest temperature ever in Tucson is 117 degrees, set on June 26, 1990.
The high temperature in Tucson Friday is expected to be slightly cooler: 108 degrees.
Ana Blumenkron gets hit in the face with water while cooling off Thursday at the splash pad at Joaquin Murrieta Park.
Meanwhile, Summer will make a dramatic entrance this week with a heat dome that’s expected to bring stifling heat and uncomfortable humidity to millions of people across the Midwest. And a new study is warning that humans are on track to release so much greenhouse gas in less than three years that a key threshold for limiting global warming will be nearly unavoidable.
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See what today's weather forecast looks like in Tucson.

