dp 
Nipomo woke to humid, drizzly conditions on July 12, 2026, as monsoonal moisture brought showers, the possibility of thunderstorms and lingering high humidity to San Luis Obispo County through the week.
Much of San Luis Obispo County woke up to a humid, drizzly day on Sunday thanks to “monsoonal moisture” spreading across California.
According to the National Weather Service, “a hot and muggy week” is expected as an upper level high front brings tropical moisture from Mexico.
This translates to warm, humid days — and yes, some chance of thunderstorms.
“Monsoonal moisture moving into the area will add to the discomfort, bringing shower and thunderstorm potential each day, highest in the mountains,” the weather service said.
During this, light showers are possible, “especially for San Luis Obispo and Santa Barbara counties,” the weather service said.
The service warned the possibility of lightning was strongest in the interior sections of Los Angeles, Ventura, and Santa Barbara counties on Sunday afternoon, though ”an isolated lightning strike cannot be completely ruled out closer to the coast.”
This comes at the same time much of the Central Coast is still under an ongoing heat advisory warning of temperatures near 100 degrees and an expected extreme heat watch starting Tuesday.
The chance of actual showers will reduce as the week goes on, but the humidity will remain high, the agency said.
This story was originally published July 12, 2026 at 10:41 AM.
Kaytlyn Leslie
The Tribune
Kaytlyn Leslie writes about business and development for The San Luis Obispo Tribune. Hailing from Nipomo, she also covers city governments and happenings in San Luis Obispo. She joined The Tribune in 2013 after graduating from Cal Poly with her journalism degree.
