Lowest temperature in Chicago on October 31?
1d
PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedData quality warningNo live quotes
Data as of Oct 29, 2026, 9:12 PM UTC · policy pm-quality-4
Selected book midpoint
44-45°F · —
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Stored reference
44-45°F No observed price
44-45°F No observed priceMarket quality
26 / 100
Low quality24h Volume
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Liquidity
$1.7K
Low liquidityBid / Ask
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44-45°FSpread
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Comments
0
Market data
Updated 40 minutes ago
Oct 29, 26, 7:29 AM UTCOct 31, 26, 12:00 PM UTC
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.
- Minimum order (shares):
- 5
- Tick size:
- 1 percentage points
- Fees:
- Yes
Top holders
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Market depth · 44-45°F
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ForecastExRules
This market will resolve to the temperature range that contains the lowest temperature reported at Chicago O'Hare Intl Airport (KORD) on 31 Oct '26.
- The qualifying value is the lowest temperature reported in the hourly temperature remark of any routine (METAR) observation for Chicago O'Hare Intl Airport (KORD) on that date, in tenths of a degree Celsius as reported.
- A report whose line begins with SPECI is a special observation and does not count.
- Every other report is routine, including one issued off the nominal hour and one that carries no METAR or SPECI label.
- For How to Read the METAR Report, see: https://polymarket-upload.s3.us-east-2.amazonaws.com/market_products/Weather/How+to+Read+the+METAR+Report.pdf
- The hourly temperature remark is the group beginning with the letter T followed by exactly eight digits.