Warm weather on tap in the Bay Area

After a weekend of cool conditions, the Bay Area should see a warm up that could bring temperatures approaching 90 degrees in some areas, forecasters said Saturday. By Tuesday, temperatures are predicted to tick up to the mid- to upper-80s in parts of the East and North Bay — a 10 to 15 degree spike from this weekend, said Matt Mehle, a forecaster with the National Weather Service in Monterey. Hamed Aleaziz is a San Francisco Chronicle staff writer.