
Chart and changes show stored historical probabilities, not the selected live book.
Trends
Selected row: book midpoint. Other rows: stored references, possibly normalized; 24h changes use stored history.
Venue terms
Source: Polymarket
Informational venue terms only; CoinRithm paper trading uses its own rules.
Market depth · 68°F or higher
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Related questions for context, not a comparison of equivalent contracts.
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Rules
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Chicago O'Hare Intl Airport Station in degrees Fahrenheit on 15 Oct '26.
Free JSON for this market, no API key needed:
https://api.coinrithm.com/api/prediction-markets/events/polymarket/lowest-temperature-in-chicago-on-october-15-2026AI agents: call pm_data_event on the CoinRithm MCP server:
https://mcp.coinrithm.com/mcp+31 more outcomes
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