‘Marathon’ heat wave begins Tuesday in the Bay Area with triple-digit temperatures

After a gorgeously warm Sunday across the Bay Area, temperatures will start to creep up Monday, leading to a 10-degree jump by Tuesday morning that will leave much of the region baking on the Fourth of the July holiday and through the end of the week.

The National Weather Service has issued an “excessive-heat warning” for Tuesday morning through 11 p.m. Friday for much of the Bay Area, with the warning focused on hills and inland areas.

“It’s going to be hot for a really long time,”...