Showers return tonight through Tuesday morning. AM Rain/Thunder with scattered afternoon storms on Wed; some storms could be strong with heavy rainfall Cool conditions (below average temps) continue ...

Showers taper off this afternoon, with some peaks of the sun. Overall, temperatures continue to climb into the mid-60s to low 70s by sunset under breezy conditions. Skies will once again become cloudy ...

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.