Seattle weather forecast API: live temperature nowcast and daily high forecast for Seattle-Tacoma Intl (KSEA), with calibrated probability the temperature ends above/below any Fahrenheit strike. KSEA is the official settlement station for Kalshi KXHIGHTSEA daily high temperature prediction markets. Built for AI agents trading weather prediction markets or needing real-time weather data. $0.05 with live 3h thermal-memory telemetry (out-of-sample nowcast RMSE 1.21F); $0.01 degraded fallback (RMSE 2.90F). Free catalog: https://runwayoracle.com/catalog.json. Model-conditional estimates; not financial advice.

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