Official KNMI observations from Amsterdam Airport Schiphol station—the market's resolution source—confirm the highest temperature on April 10, 2026, peaked at 12.9°C around midday under partly sunny skies with light westerly winds, aligning precisely with pre-event forecasts from KNMI and ECMWF ensemble models projecting 13–14°C maxima amid cool early-spring conditions typical for the region (climatological April norms ~14°C). Persistent upper-level troughing suppressed warming, driving trader consensus to 100% implied probability on "14°C or below" as real-time data poured in yesterday. Realistic challenges are negligible post hoc, barring unprecedented station malfunction or data revisions during KNMI quality control, expected to finalize soon.
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 10?
Highest temperature in Amsterdam on April 10?
14°C or below 100.0%
15°C <1%
16°C <1%
17°C <1%
$28,784 Vol.
$28,784 Vol.
14°C or below
Yes
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C or higher
No
14°C or below 100.0%
15°C <1%
16°C <1%
17°C <1%
$28,784 Vol.
$28,784 Vol.
14°C or below
Yes
15°C
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°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 6, 2026, 12:26 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: Yes
No dispute
Final outcome: Yes
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: Yes
No dispute
Final outcome: Yes
Official KNMI observations from Amsterdam Airport Schiphol station—the market's resolution source—confirm the highest temperature on April 10, 2026, peaked at 12.9°C around midday under partly sunny skies with light westerly winds, aligning precisely with pre-event forecasts from KNMI and ECMWF ensemble models projecting 13–14°C maxima amid cool early-spring conditions typical for the region (climatological April norms ~14°C). Persistent upper-level troughing suppressed warming, driving trader consensus to 100% implied probability on "14°C or below" as real-time data poured in yesterday. Realistic challenges are negligible post hoc, barring unprecedented station malfunction or data revisions during KNMI quality control, expected to finalize soon.
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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