Recent National Weather Service forecasts and supporting model guidance point to a high near 60–63°F for Seattle on October 9, with rain likely by morning and south winds of 10–15 mph. A frontal system arriving after Thursday’s warmer, sunnier conditions (highs near 70°F) will increase cloud cover and limit daytime heating, keeping temperatures close to seasonal norms. The tight clustering of market-implied odds on the 60–61°F and 62–63°F bins reflects this consensus while acknowledging residual uncertainty in exact timing of precipitation onset and any brief breaks in cloud cover that could nudge the daily maximum a degree or two higher or lower. Updated NWS guidance and hourly observations on the day will be the key resolution inputs.