Current National Weather Service forecasts indicate clear skies and light northerly winds over Seattle on October 12, supporting radiational cooling overnight with expected lows in the low to mid-40s°F, near or slightly below the 47.5°F climatological average for the date. These conditions favor the market's leading 35°F-or-below outcome at 50% implied probability, as traders weigh potential for localized colder pockets or model underestimation of cooling efficiency. Recent model consensus shows minimal precipitation risk and stable high pressure, limiting warmer advection, while historical records note occasional October lows dipping into the mid-30s under similar setups. Updated NWS guidance and observational data through early October 12 will refine these probabilities ahead of resolution.