The calendar says it's fall, but in Tucson this weekend it will continue to feel a lot like summer.
An excessive heat warning will be in effect in metro Tucson Friday and Saturday, according to the National Weather Service.
Friday's high temperature here is expected to reach 105 degrees, two degrees higher than the current record for the day of 103 degrees set in 2023.
The high on Saturday is expected to top 106 degrees. That too would be a record, toppling a 103-degree record high set in 1994, the whether service noted in a post on X.
Tucson International Airport recorded a high of 105 degrees Wednesday afternoon, breaking a 125-year record for the hottest Sept. 25 . The record-high of 104 degrees was set in 1899, the weather service said in an internet post. Tucson's weather records date back to 1895.
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The excessive heat warning covers metro Tucson, western Pima County, Marana and Green Valley, the weather service says.
"The heat wave will peak Friday and Saturday when Excessive Heat Warnings are in effect from Tucson westward," the weather service said. "Expect high temperatures from 105 to 112 as the heat wave peaks during this time period."
A gradual 'cooling' trend is expected to follow, with highs in Tucson next week to be about 100 degrees next week.
While temperatures are expected to dip below 105 degrees Sunday and Monday, historical temperature records could still be broken.
The National Weather Service here expects Sunday and Monday to each reach 103 degrees. The hottest Sept. 29 high temperature here is 101 degrees and for Sept. 30 it is 104 degrees, which were both set in 2010, the weather service says.
A normal September in Tucson has eight days reaching above 100 degrees. There have been 11 days triple-digit has here this month as of Wednesday, according to Tucson weather data.
On average, Tucson typically has one September day reaching at least 105 degrees. As of Wednesday, there have been two such days this month, the weather service says.
But Tucson's heat doesn't compare to its last summer, or what Phoenix is currently enduring, according to The Arizona Republic.
Earlier in the month, Phoenix ended its streak of consecutive triple-digit days at 113.
And the high at Phoenix Sky Harbor International Airport hit 113 degrees on Wednesday, breaking a 35-year record, The Arizona Republic reported Wednesday.