Recent National Weather Service and ensemble forecasts indicate San Francisco overnight lows for October 2 will likely settle in the upper 50s to low 60s Fahrenheit amid a persistent Pacific high-pressure ridge delivering above-normal warmth. This setup, reinforced by recent typhoon activity influencing the jet stream, has produced a multi-day stretch of mild conditions with minimal marine layer cooling and light westerly winds. Historical October 2 averages near 55.5°F provide context, yet current model consensus favors limited overnight radiative cooling under mostly cloudy skies. Traders appear to weigh the potential for slightly warmer readings against typical coastal variability, with resolution hinging on official minimum observations at downtown stations. Updated model runs and NWS briefings over the next 24 hours will refine these probabilities.