Bot for Kalshi
Asset-Class Specific Bots

suislanchez / polymarket-kalshi-weather-bot

by Luis Sanchez (suislanchez)

Repository metadata checked 2026-09-23. GitHub was accessible; latest repository push: 2026-03-02. This does not verify current trading compatibility, security, or returns.

What it does

Trades Kalshi KXHIGH temperature markets plus Polymarket. Uses 31-member GFS ensemble forecasts via Open-Meteo plus BTC 5-min microstructure signals. 15% Kelly sizing capped at 5% of bankroll and $75–100 per trade. React 3-column dashboard (signals, weather, trades) with FastAPI backend; Brier score tracking; simulation mode with virtual bankroll and equity curves. Reported max profit of $1.8k.

What we learned from it

ensemble forecasts crush single-model forecasts on Kalshi weather markets. The 31-member GFS ensemble is free via Open-Meteo. The Brier score tracking inside the dashboard — explicit measurement of forecast calibration — is what separates serious weather bots from beginners.

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