This will also accompany a significant temperature drop. In Pleasanton, temperatures are expected to drop from 88 Thursday to 80 Friday, to 76 Saturday and 73 Monday, while San Francisco is expected to drop from 74 degrees Thursday to 61 degrees Monday. By Monday, temperatures across the region are expected to run 5 to 15 degrees below seasonal averages.
However, the potential rain is expected to be light, and forecasters said they do not expect enough to thoroughly wet vegetation and reduce the risk of lightning-induced wildfires. This is particularly true in higher elevations, where near-critical fire weather conditions persisted Thursday, NWS said.