This PredictPedia entry covers a Polymarket event asking for the highest temperature in Taipei on October 21, 2026. The event is split into temperature brackets, each of which is a separate yes or no contract. The provider's rules say the market resolves to the bracket containing the highest temperature recorded at the Taipei Songshan Airport Station, measured in whole degrees Celsius [1]. The resolution source is Weather Underground's historical data page for that station, and the rules name that page as the source to check [1]. The rules also set out how a result is determined. If the data on that page conflicts with the summary figure shown in its Day High and Low section, the daily observations table is treated as the primary source [1]. If no data exists for the observation date by 11:59 PM ET on the following day, the market resolves to the lowest bracket [1]. The market is set to resolve once the first data point for the following date is published on the resolution source, or by 11:59 PM ET on the day after the observation date, whichever comes first [1]. Revisions made within the market's timeframe are considered until that first data point for the next date appears, after which later changes are not considered [1]. The rules also cover erroneous data. If the resolution source publishes a value that is clearly wrong because of a technical or operational error, or because of unauthorized interference, the market may stay open for up to seven calendar days (ET) from the original release so the source can publish a correction [1]. If no correction appears in that period, the provider may issue a clarification on whether the original value can be used [1]. The saved event lists eleven bracket markets, covering 26 degrees Celsius or below, each whole degree from 27 to 35, and 36 degrees or higher [1]. Each market shows a Yes price and a No price. These are snapshots taken from the provider's data at the time it was observed. They are not executable quotes and should not be read as verified probabilities. A trading volume figure, where shown, does not measure liquidity or the number of participants. All eleven markets for this event are included in the sample, so the listed brackets are the full set the provider saved for this event. That does not establish that the provider lists every possible outcome. Taipei is the capital and a special municipality of Taiwan, located in northern Taiwan on the Taipei Basin [3]. The sources supplied for this entry do not describe the station's history or the local climate, so this article does not characterize typical October temperatures.

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