Clouds swirl across the city and the Santa Catalina Mountains during a dramatic sunset over Tucson on August 20, 2018 in Tucson, AZ.

Unlike the beginning of the week, there is a slight chance of thunderstorms today — but it's a very, very slight chance.

Chances are expected to increase as the week continues, with Saturday having the best chances, according to the National Weather Service. 

And unfortunately, despite the slight increase in thunderstorm chances, temperatures are still expected to hit the 100s today. 

High: 101 

Low: 76