**The dominant 68-69°F bin at 98% implied probability reflects official minimum temperature observations from Los Angeles stations, primarily Los Angeles International Airport (KLAX), which recorded a low in that narrow range overnight into September 14, 2026.** Late-summer marine layer influence and light onshore flow maintained mild overnight conditions near the seasonal average low of ~64°F, with no significant synoptic cooling or heat advection altering the outcome. Forecast models had converged on mid-to-upper 60s readings in the days prior, aligning trader consensus with verified data rather than projections. Resolution hinges on the precise station and rounding criteria used by the market; minor discrepancies in microclimate readings or alternative urban stations could theoretically shift the result, though historical consistency and real-time monitoring make such adjustments improbable.