Recent National Weather Service and ensemble model guidance points to an overnight low near 52°F in Seattle on October 7 under mostly clear skies and light northerly flow, supporting moderate outcomes in the mid-50s range. Clear conditions enable strong radiative cooling after sunset, while light winds limit turbulent mixing that could keep temperatures higher; any increase in cloud cover or onshore flow would moderate the drop. Historical October climatology shows average lows near 48–49°F, so current drier, stable high-pressure patterns favor readings above that baseline. Updated model runs tonight and tomorrow morning will refine boundary-layer moisture and wind forecasts, directly influencing trader positioning between the tightly matched cooler and warmer bins.