Current forecasts from multiple models place Seattle's overnight low on September 2 near 55°F amid an approaching frontal system, with south-southwest winds, increasing cloud cover, and periods of rain expected to limit radiative cooling. This positions the minimum temperature near the center of several tightly clustered market bins (52-53°F through 56-57°F), where modest revisions to wind strength, precipitation timing, or marine-layer depth could easily shift the outcome by a degree or two. Historical climatology shows an average low of 55°F for the date, providing context for why traders see comparable implied probabilities across adjacent ranges rather than strong consensus on any single threshold. New National Weather Service model runs and updated guidance over the next 48 hours represent the key catalysts likely to influence positioning before resolution.