**Current forecasts from multiple models indicate a mild overnight minimum around 11–12°C for Munich on September 18, driven by moderate westerly flow and limited radiative cooling under partly to mostly cloudy skies.** This aligns with the climatological average low of 9.8°C but sits above recent cooler analogs. The closely matched market probabilities for 6–8°C versus higher bins reflect genuine model uncertainty in exact minimum timing, cloud cover evolution, and boundary-layer mixing. Key differentiating factors include the strength of nocturnal longwave radiative loss under clearer pockets (favoring sharper drops toward single digits), surface wind speeds that enhance turbulent mixing and limit cooling, and any subtle advection of slightly cooler continental air versus retained maritime warmth. Upcoming model runs and updated observations from the German Weather Service (DWD) will likely narrow the range before resolution. Historical records show September 18 lows as low as 0.5°C, but current synoptic patterns lack the blocking high or clear, calm conditions needed for such extremes. Trader sentiment aggregates these variables into skin-in-the-game odds centered on near-term forecast consensus.