Recent National Weather Service and model guidance indicate a Pacific frontal system arriving overnight, with showers likely through Saturday morning and a slight thunderstorm risk in the afternoon, supporting trader emphasis on mid-50s outcomes near the 55.7 °F climatological average low. Variable cloud cover will modulate nocturnal radiative cooling while light southerly to westerly flow limits marine-air pooling; stronger onshore winds or persistent overcast would favor 52–57 °F readings, whereas partial clearing after midnight could allow brief dips toward the low 50s. Ensemble spread in boundary-layer moisture and timing of clearing creates the tight clustering around 50–57 °F brackets, with the slim 47 °F-or-below tail reflecting outlier drier-air scenarios. Updated NHC and local model runs ahead of the overnight period remain the key near-term catalyst.