Recent National Weather Service and model consensus for San Francisco points to an overnight low near 59°F on October 8, driven by a persistent marine layer, onshore westerly flow, and moderating high pressure after early-month warmth. This setup favors minimum temperatures in the upper 50s amid typical October climatology (historical average low ~55°F), though San Francisco’s microclimates and variable fog timing introduce uncertainty in the precise hourly minimum at official stations. Trader emphasis on warmer buckets aligns with the recent above-normal temperature streak and model spreads, while the low probability on sub-50°F outcomes reflects limited cooling potential before the pattern shifts cooler Friday onward. Updated NWS briefings and evening model runs will refine resolution thresholds.