Recent forecast models from the National Weather Service and observational trends positioned 60-61°F as the leading outcome for San Francisco’s September 13 low due to persistent marine layer influence and light onshore flow limiting radiational cooling. Overnight temperatures stabilized in the upper 50s amid clear to partly cloudy skies and weak winds, aligning closely with the 56°F climatological normal while exceeding cooler historical analogs. Official SFO data recorded a 59°F minimum, reflecting these conditions without significant cold-air advection or clear-sky enhancement of heat loss. Market-implied odds reflect trader assessment of model consensus on these moderate thermal patterns ahead of resolution.