Hot weather is here and it's only going to get hotter over the weekend, the National Weather Service warned Friday.
Most of the Bay Area will be the hottest since the heat wave in late June and early July, and fire danger will be high, according to meteorologist Logan Johnson.
Temperatures in San Francisco and Oakland will reach the 80s, even along the normally cool coast, Johnson said.
San Jose could hit 90 to 100, and far inland areas could reach the low 100s, particularly on Sunday and Monday, before the weather cools slightly on Tuesday.
The hot weather has triggered a Spare the Air alert for Saturday, as low winds and high temperatures combine to produce unhealthy ozone levels in the air, according to the Bay Area Air Quality Management District.
Bay Area residents are encouraged to walk, bike or take public transit instead of driving, to reduce vehicle emissions.
Those planning to exercise outdoors should do so during the morning hours when ozone levels are lower, officials said.
In Sonoma and Marin counties, where temperatures in some communities could hit the 90s and low 100s, residents are being urged to conserve water, according to the Sonoma County Water Agency and the Sonoma-Marin Saving Water Partnership.
During the hot weather, water customers should irrigate outdoors only between midnight and 6 a.m. to reduce water loss from evaporation and wind, and water in two short cycles rather than one long one.
In addition, all pools and hot tubs should be covered to prevent evaporation.
Due to a historic dry spring and winter, water agencies in the area are working to reduce overall water usage, especially during heat waves when demand peaks.
Watchdogs are questioning an exclusive agreement between the City of Oakland and a non-profit group, tapped to lead a multi-million dollar project to redevelop the area around the Coliseum BART station.
City officials joined the San Francisco Recreation & Park Department and members of the community Thursday, December 5th, for the lighting of San Francisco’s official holiday tree, located outside historic McLaren Lodge.