Recent National Weather Service guidance and ensemble model runs indicate Seattle's overnight low on October 1 will likely settle near 49–52 °F, close to the 1991–2020 climatological average of 49.9 °F. Trader sentiment remains split between sub-44 °F and 62 °F+ outcomes because radiational cooling under clear skies versus persistent marine-layer stratus and light southerly flow can shift the minimum by 5–8 °F in either direction. With the event only 48 hours away, small changes in forecast cloud cover or wind speed—key variables still showing model spread—continue to drive the near-even implied probabilities across the temperature bins. Updated NWS briefings and next model cycle will be the primary near-term catalysts.