Parts of the North Bay are now expected to reach at least 100 degrees tomorrow.
A heat advisory will be in place for the region tomorrow between 11:00 a.m. and 8:00 p.m. During that time, Santa Rosa is expected to reach 95 degrees. Cloverdale, often one of the hottest places in the county, is expected to reach 102 degrees.
The heat advisory applies to all of Napa County and the interior valleys and mountains in Sonoma County.