Outside Lands and the Bay Area might see some rain this weekend

Chance of precipitation for Saturday, Aug. 10. Chance of precipitation for Saturday, Aug. 10. Photo: National Weather Service Photo: National Weather Service Image 1 of / 29 Caption Close Outside Lands and the Bay Area might see some rain this weekend 1 / 29 Back to Gallery

It wouldn't be summer in San Francisco without the chance of a little drizzle. It looks like the Bay Area will be seeing a dip in temperatures this weekend, as well as the potential for some isolated showers across the North Bay.

That might spell bad news for Outside Lands attendees in San Francisco's Golden Gate Park.

The National Weather Service forecasts lower temperatures on Friday and Saturday as an upper-level trough moves east over the Oregon coastline, bringing lower-than-normal temperatures for the Bay Area.

On Friday, San Francisco is expected to see a high of 63, Half Moon Bay 66, San Rafael 79, San Jose 79, and Livermore 81.

The North Bay, in particular, is expected to see highs ranging from the mid-70s to the low 80s, which is about 5 to 10 degrees below normal, with possible isolated showers Friday night through Saturday.

All coastal areas will see near to below-normal temperatures in the 60s to low 70s, with possible isolated showers all the way up the Sonoma and Marin coasts.

Rainfall, at least, is expected to be light, accumulating less than 0.10 inches of rain. But festival-goers may opt to bring a waterproof jacket, as umbrellas aren't allowed at the event.

By Sunday morning, the Bay Area can expect a warming trend as a ridge brings back normal to above-normal temperatures early in the work week.

MORE: California's future weather will alternate between drought and atmospheric rivers, study says

Isabela Angus is an SFGATE intern. Email: isabela.angus@sfgate.com