San Francisco starts Friday, October 30, at about 57 degrees with high humidity, then heads for mostly sunny skies and an afternoon high near 59. The city stays dry Friday, but the waterfront remains the bigger story: elevated tides could affect low-lying Bay shoreline areas through Saturday. Halloween brings cooler temperatures and a chance of showers Saturday.
High Tides Keep Waterfront Plans On Notice
Coastal flooding concerns affect Bay shoreline areas through 6 p.m. Saturday and Pacific Coast locations through Friday; check the National Weather Service for current conditions. At the San Francisco tidal gauge, high tide is expected around 2:39 p.m. Friday, about 1.6 feet above normal.
The advisory could mean flooding around low-lying infrastructure, isolated road closures and additional coastal erosion. Anyone traveling near the waterfront should allow extra time, avoid barricades and never drive through water of unknown depth.
The weekend tide outlook differs from Hoodline’s earlier forecast, which focused on the initial high-tide threat through Saturday.
Halloween Starts Cool Before Showers Move In
Friday night should be mostly cloudy, with a low near 52 degrees. Saturday reaches about 64 degrees, with possible showers.
Rain could continue Saturday into early Sunday, with a tenth to a third of an inch possible in parts of the region. Trick-or-treaters may get a mostly dry start, but a light jacket and a backup plan for wet weather would be sensible.
Sunday Morning Showers Give Way To Sun
Clouds give way to sun Sunday, with a high near 64 degrees. Sunday night should be mostly clear and cool, followed by a mostly sunny Monday with temperatures reaching about 65.
Rain Chances Return Next Week
Rain chances remain uncertain early to midweek, with low-probability rain chances later in the outlook.
