Persistent warm advection from a strong upper-level ridge has driven recent overnight lows in Los Angeles into the low-to-mid 70s °F, limiting typical marine-layer cooling and supporting the near-even market split between sub-62 °F and 80 °F-or-higher outcomes. National Weather Service guidance and ensemble models indicate a likely minimum near 66–72 °F on August 26, consistent with climatological norms around 65 °F but elevated by anomalous low-level moisture and onshore flow that reduces radiative cooling. Key variables include boundary-layer wind speeds, stratus coverage, and any late timing shift in the marine layer; clearer, calmer conditions would favor cooler readings while continued warm advection or higher humidity would sustain elevated minima. Updated NWS and model runs ahead of the overnight period will refine these thresholds.