National Weather Service forecasts for San Francisco on October 9 indicate a daytime high near 68–69°F, with hourly readings climbing from the upper 50s in the morning to a peak around mid-afternoon under partly cloudy skies and southwest winds of 10–15 mph with gusts to 20+ mph. This marine-influenced pattern, driven by onshore flow and a persistent marine layer, caps temperatures below historical October averages near 70°F and explains why the market assigns the highest implied probabilities to the 66–69°F bins. Model consensus shows limited warming potential without stronger offshore flow or clearer skies, though minor shifts in afternoon cloud cover or wind timing could nudge the exact maximum between adjacent ranges. Updated NWS guidance later today will provide the final observational data for resolution.