LAKE COUNTY, Calif. – With temperatures expected to climb early next week, the National Weather Service issued a heat advisory for Lake County and other portions of Northern California.

The National Weather Service said the advisory will be in effect from noon to Sunday to 8 p.m. Monday.

A heat advisory means that a prolonged period of hot temperatures is expected and will create a situation in which heat illnesses are possible.

Forecasters said building high pressure will bring hot temperatures over the weekend with daytime highs from 10 to as much as 15 degrees above normal.

The specific Lake County forecast calls for temperatures topping the century mark on Monday, and remaining in the high 90s throughout much of the week.

The National Weather Service said thunderstorms are possible in the mountains at that time.

Close to next weekend, temperatures will drop as cloudy conditions arrive, according to the forecast.

Email Elizabeth Larson at This email address is being protected from spambots. You need JavaScript enabled to view it.. Follow her on Twitter, @ERLarson, or Lake County News, @LakeCoNews.