Recent observational data from Los Angeles weather stations indicate a notably warm overnight period on September 13, with the official low aligning closely to the 70-71°F range that now holds 75% implied probability. Persistent high pressure and reduced marine layer influence allowed warmer air to remain in place overnight, limiting typical radiational cooling near the coast. NOAA surface analyses and local mesonet reports confirm minimal cloud cover and light winds that suppressed temperature drops below the mid-60s. This outcome exceeds September climatological normals for downtown and coastal sites, where average lows hover near 62-65°F. Upcoming official daily summaries from the National Weather Service will finalize resolution criteria based on the primary reporting station.