South San Francisco, California Weather Forecast

San Mateo County 37.65°N, 122.42°W Pop. 67,789 ZIP: 94080

South San Francisco is in San Mateo County, California (pop. 67,789). Below you'll find current conditions, radar, observed precipitation with YTD anomalies, a 7-day forecast, GDD accumulations, and the NWS written forecast.