Saguaros

Initial research into the saguaro chloroplast genome has revealed that it is the smallest for any flowering plant that uses photosynthesis.

Another afternoon of showers and thunderstorms, but it will be accompanied by almost a 10 degree drop in temperature from yesterday.

Monsoon activity is expected to continue into early next week, but it might not be consistent from a day-to-day basis.

Lower temperatures will be the norm for the next week or so, but there's plenty of summer left for another heat spell to kick in.

High: 97

Low: 76


Become a #ThisIsTucson member! Your contribution helps our team bring you stories that keep you connected to the community. Become a member today.