More of the Same in Weekend Forecast

Mornings will be cool enough to jog or bike ride, afternoons will warm up to the back yard barbecue range, and evenings will be comfortable enough for sound sleeping this weekend, forecasters said.

“What you see on Friday is pretty much what you’ll get all weekend,” said Dave Beusterien, a meteorologist with WeatherData Inc., which provides forecasts for The Times.

An upper-level low pressure system about 200 miles off Ventura County will move very slowly south for the next two or three days, Beusterien said.

That system, he said, is responsible for the late night and early morning low clouds and fog that have been a fixture over the Orange County area for the past few days.

The clouds will give way to hazy sunshine by midday, and high temperatures will range from the mid-60s along the coast to the mid-70s inland, Beusterien said. The low deserts will see highs from 100 to 110.

On Thursday, San Juan Capistrano had a high of 73, it was 70 in El Toro and 61 in Newport Beach. Forecasters said it will be slightly warmer throughout Orange County today.

There is a very slim chance that moist air moving north from Mexico could collide with the slow-moving low-pressure system, creating some precipitation, Beusterien said. That is most probable in the Owens Valley.

Weekend mariners headed for the open sea will find variable winds up to 15 knots, with 3-foot swells in outer coastal waters from Point Conception to the Mexican border, the National Weather Service said. Inner waters will have southwest and west winds from 8 to 16 knots with 2-foot seas.