The ‘Dog Days Of Summer’ Will Afflict San Diego Until Friday

Feeling cranky? Blame it on the monsoon.

Moist, unstable air from northern Mexico is flowing into San Diego County, raising the heat and humidity to uncomfortable levels and sparking a few spectacular thunderstorms.

One of those cells unexpectedly pushed into downtown San Diego shortly before 3 p.m. on Wednesday, producing big booms, bright bolts and enough rain to briefly slow traffic on city streets.