**Forecast consensus from NWS, GFS-based models, and major outlets places the overnight minimum for September 20 in the mid-to-upper 60s°F across Los Angeles, with coastal and airport stations (e.g., LAX) often recording the lowest values due to marine influence.** Recent NWS zone forecasts highlight patchy fog and low clouds overnight into Sunday morning under light easterly or variable winds, followed by gradual clearing and highs in the mid-70s to low-80s. This setup produces typical September coastal moderation, preventing sharp radiational cooling while limiting daytime heating. Multiple 10-day outlooks converge on lows of 64–67°F, with minor spread arising from exact fog timing, cloud cover duration, and microsite differences between downtown, the basin, and the immediate coast. Market-implied odds cluster tightly on 66–69°F because these align directly with the current model blend and historical September climatology for the region; lower outcomes (64–65°F) gain traction only if the marine layer persists longer than expected, while higher readings would require clearer skies and stronger offshore flow. No significant synoptic changes (such as strong high pressure or frontal passages) are indicated in the short term, keeping uncertainty within a narrow band ahead of final overnight observations.