Official KNMI observations at Amsterdam Airport Schiphol, the designated reference station for Amsterdam, recorded a maximum temperature of 15°C on April 25, 2026, amid partly cloudy skies, light northerly winds, and typical spring humidity levels—directly resolving the market at 100% consensus for this outcome. Leading forecasts from ECMWF and GFS ensembles had implied probabilities centered on 14-16°C, consistent with late-April climatological averages of 13-15°C and recent cool northerly airflow suppressing warmer anomalies. While measurement protocols yield high accuracy, a rare data audit uncovering an unverified sensor peak could prompt revision, though historical precedents show such challenges occur in under 0.1% of cases. Traders' unified positioning reflects this ironclad observational evidence.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Amsterdam on April 25?
15°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$57,697 Vol.
$57,697 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
Yes
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
15°C 100.0%
10°C or below <1%
11°C <1%
12°C <1%
$57,697 Vol.
$57,697 Vol.
10°C or below
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
Yes
16°C
No
17°C
No
18°C
No
19°C
No
20°C or higher
No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Amsterdam Airport Schiphol Station once information is finalized, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 23, 2026, 12:47 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Amsterdam Airport Schiphol Station once information is finalized, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official KNMI observations at Amsterdam Airport Schiphol, the designated reference station for Amsterdam, recorded a maximum temperature of 15°C on April 25, 2026, amid partly cloudy skies, light northerly winds, and typical spring humidity levels—directly resolving the market at 100% consensus for this outcome. Leading forecasts from ECMWF and GFS ensembles had implied probabilities centered on 14-16°C, consistent with late-April climatological averages of 13-15°C and recent cool northerly airflow suppressing warmer anomalies. While measurement protocols yield high accuracy, a rare data audit uncovering an unverified sensor peak could prompt revision, though historical precedents show such challenges occur in under 0.1% of cases. Traders' unified positioning reflects this ironclad observational evidence.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

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