Forecast models from the National Weather Service indicate a mild overnight period for Seattle on September 13, with cloud cover, southerly flow, and light rain expected to limit radiational cooling and support a minimum temperature near the 52–58°F range. This aligns with the market-implied odds favoring 54–55°F or 52–53°F bins, as those outcomes sit close to the 1991–2020 climatological average low of 53.5°F while reflecting ongoing model consensus on marine influence and weak frontal passage. The elevated probability on 66°F or higher captures residual uncertainty in boundary-layer mixing and precipitation timing, which could prevent the temperature from falling as far if clouds persist longer than currently projected. Updated model runs and local observations through the evening of September 12 will provide the next key data points for refining these ranges ahead of market resolution.