Thursday morning lows in coastal and Bayshore regions are in the lower to middle 50s before temperatures warm to around 70, but the easygoing weather will not last. Rain, gusty winds and dangerous surf move in Friday, setting up a rough weekend along the coast. The Bay Area is getting one more comfortable outdoor window before the forecast turns decidedly wetter.
Thursday Stays Warm Before Winds Pick Up
Thursday will be partly sunny, with temperatures reaching near 70 around midday before sliding into the mid-60s during the afternoon. The National Weather Service in San Francisco expects southerly winds to increase, with breezier afternoon winds.
Prefrontal showers are possible tonight into Friday morning.
Friday Brings Rain, Wind And A Chance Of Thunder
Friday is the forecast's main pivot, with rain possible from late morning into early afternoon and a slight chance of thunder Friday morning and afternoon. Rain is expected to remain likely afterward, with a high near 64 and roughly a half-inch to three-quarters of an inch possible.
Friday's south winds will run 18 to 23 mph, shifting west-southwest, with gusts to 34 mph. Friday night stays wet, with rain likely, a low near 54 and slick roads possible during the evening commute.
Coastal Flooding And Dangerous Surf Raise The Stakes
A Coastal Flood Advisory remains in effect through 4 p.m. Friday for low-lying areas near shorelines and tidal waterways, where up to 1.5 feet of inundation is possible. High tide at the San Francisco gauge is expected to reach about 7.1 feet Thursday around 12:10 p.m. and 7.3 feet Friday around 12:49 p.m.
A Beach Hazards Statement continues through 6 p.m. Friday, with breaking waves of 15 to 20 feet, sneaker-wave risks and strong rip currents. A High Surf Warning begins at 6 p.m. Friday and runs through early Sunday, when breaking waves could reach 25 to 35 feet.
People should stay out of the water and away from jetties, piers, rocks and seawalls during the dangerous surf period. Drivers should allow extra time near the shoreline, avoid barricades and never drive through water of unknown depth.
More Rain Returns Sunday And Next Week
Saturday could start with light rain before partly sunny skies develop, with a high near 65. Rain is likely again Sunday, continuing into Monday as temperatures fall from the mid-60s to around 60.
Tuesday looks mostly sunny with a high near 60, but another round of rain is possible Tuesday night and Wednesday. The unsettled pattern may bring additional gusty winds, slick pavement and isolated travel problems as more systems move through the region.
