Trader consensus has converged on a 70-71°F high for Seattle on October 2 because official observations from the primary reporting station recorded a daily maximum in that narrow band under mostly cloudy skies and light northerly flow. This outcome aligns with National Weather Service data showing afternoon readings peaking near 70°F after morning lows in the mid-50s, consistent with early-October climatology modified by a transient ridge that suppressed marine influence and allowed modest warming. Historical records indicate October 2 averages 65°F, so the observed value represents a modest positive anomaly without crossing into stronger heat. Scenarios that could have challenged the market resolution include a stronger onshore push or delayed clearing that capped the high below 70°F, or an unexpected downslope wind event pushing it to 72°F or higher; neither materialized in the final verified measurements.