PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedSelected book midpoint
41°F or below · —
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Stored reference
41°F or below No observed price
41°F or below No observed priceMarket quality
23 / 100
Low quality24h Volume
$5.4
Liquidity
$220.9
Low liquidityOpen interest
$5.4
Bid / Ask
— / —
41°F or belowSpread
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Comments
0
Market data
Updated 11 minutes ago
Oct 22, 26, 7:29 AM UTCOct 24, 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 · 41°F or below
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Lowest temperature in Chicago on October 25?
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KalshiWill the highest temperature in Chicago (CHI)(MDW)(KMDW) exceed 71 F on October 23, 2026? (maximum) (max) (hottest)?
ForecastExWill the lowest temperature in Chicago (CHI)(MDW)(KMDW) be below 50 F on October 23, 2026? (minimum) (min) (coldest)?
ForecastExRules
This market will resolve to the temperature range that contains the lowest temperature reported at Chicago O'Hare Intl Airport (KORD) on 24 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.