Latest National Weather Service forecasts for Seattle on October 5 project a high in the mid to upper 60s under partly sunny skies after morning fog and low clouds lift, consistent with light northerly winds and seasonal marine air influence under near-zonal upper-level flow. This aligns with trader emphasis on 66-67°F (44%) and 64-65°F (38%) outcomes, reflecting typical early-October variability where observed maxima often cluster near the 64°F historical average yet can reach the upper 60s with sufficient afternoon sun breaks. Model consensus supports modest warming potential without strong onshore push or precipitation, though exact clearing timing introduces narrow uncertainty around resolution thresholds. Updated observations through the afternoon will determine the final peak.