PolymarketCheck availabilityNo KYCVerified resolution dataWell calibratedData quality warningStale data
Data as of Oct 27, 2026, 9:41 AM UTC · policy pm-quality-4
Selected book midpoint
17°C · —
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Stored reference
17°C 50.5%Leader of 11 outcomes
17°C 50.5%Market quality
62 / 100
Medium quality24h Volume
$10.5K
Liquidity
$32K
High liquidityOpen interest
$6.7K
Bid / Ask
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17°CSpread
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Comments
0
Market data
Updated 48 minutes ago
LaggingOct 25, 26, 4:58 AM UTCOct 27, 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 · 17°C
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Related Markets
Related questions for context, not a comparison of equivalent contracts.
Highest temperature in Amsterdam on October 28?
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PolymarketLowest temperature in Amsterdam on October 27?
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PolymarketWhere will it rain on Oct 27, 2026?
KalshiRules
This market will resolve to the temperature range that contains the highest temperature reported at Amsterdam Airport Schiphol (EHAM) on 27 Oct '26.
- The qualifying value is the highest temperature reported in the hourly temperature remark of any routine (METAR) observation for Amsterdam Airport Schiphol (EHAM) 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.