Moisture from former tropical storm Mario will help break the heat starting Thursday. It could also set Northern California up for the first rainy commute in a while on Friday.

Thursday will be mostly cloudy for most of the day with light winds. Valley and Foothills temperatures will peak about 10 degrees lower than Tuesday and Wednesday. Sacramento's forecast high is 88 degrees.

A stray shower or thunderstorm is possible in the Bay Area and western San Joaquin Valley starting just before sunset Thursday. A more widespread rain is expected to move from south to north across the Valley, Foothills and Sierra overnight Thursday and into Friday morning.

Scattered dry lightning is still a possibility late Thursday evening into early Friday morning. The risk for a fast-spreading fire is dropp

See Full Page