National Weather Service forecasts and ensemble model guidance indicate a strong high-pressure ridge driving a heat wave across Southern California, but persistent marine layer and onshore southwest flow are moderating temperatures at coastal measurement points like Los Angeles International Airport. This setup favors daily highs in the low-to-mid 80s on August 25, with recent model runs showing only modest day-to-day warming. The near-even market weighting between the 82-83°F and 84-85°F bins reflects uncertainty in the precise afternoon peak, driven by small differences in predicted wind strength, cloud cover timing, and how far the marine layer mixes inland. Inland areas are expected to climb well into the 90s or higher, yet the resolution station's proximity to the ocean keeps the distribution tightly clustered around these cooler outcomes. Updated model runs and NWS briefings over the next 24 hours will likely narrow the range.