The National Weather Service is forecasting high temperatures for the latter half of this week that could combine with offshore wind events to create elevated fire risk through the weekend.
The Weather Service also issued a heat advisory for Monday due to highs ranging from 95 to 105 degrees for the Santa Clara Valley, eastern Santa Clara Hills, the East Bay hills and valleys, and the North Bay interior mountains. The advisory is in effect until 10 p.m. Monday.
The increased heat and fire risk later this week is expected to be created by Central Valley winds pushing particularly dry air into the region — the result of a re-strengthening of a heat dome located southeast of the Bay Area.
The East Bay is expected to “be the hottest out of all of the areas,” according to the Weather Service, with conditions expected to create maximum temperatures in the mid to high 90s throughout the Tri-Valley, with minimum relative humidities below 30% during the weekend around Altamont Pass and Mount Diablo.

According to the Weather Service, these humidity levels represent above-average dry conditions that could create increased fire potential.
High temperatures in the high 80s to low 90s are expected for the inland areas of the South Bay and North Bay, with cooler maximums in the mid 70s expected along the coast due to the marine environment.
In San Francisco, the areas along the Pacific Coast can expect high temperatures in the mid 60s, while the bayside of the city will be warmer with high temperatures in the mid 70s.
The bayside of the city is also expected to be slightly on the “drier side,” according to the Weather Service, though the humidity will remain higher than the other parts of the Bay.
Considering the forecasted high weekend temperatures, the Weather Service recommends Bay Area residents make sure they stay hydrated, never leave children or pets unattended in vehicles and pay close attention to the ocean in coastal areas.
Meanwhile, the Bay Area Air District is expecting good to moderate air quality for the region throughout the week, despite wildfires burning in Mendocino, Sonoma and Santa Clara counties.
