**Persistent high-pressure ridge sustaining an October heat wave has elevated overnight minimum temperatures across Los Angeles, keeping the daily low on October 8 forecast in the upper 60s to low 70s.** National Weather Service and model guidance indicate lows near 68–72°F under mostly clear skies, roughly 7–12°F above the 1991–2020 climatological average of 61°F, as the heat dome limits radiational cooling. This positions mid-60s to low-70s bins as plausible outcomes while the 80°F+ market reflects residual uncertainty around urban heat-island effects or slightly warmer marine-layer nights. Cooling is not expected until high pressure weakens after Thursday, so new model runs and official NWS updates on Thursday morning will be the key data points for traders assessing whether the minimum stays above or dips near historical norms.