Recent model guidance from sources like ECMWF and regional outlooks points to a maximum of 20–22°C in Amsterdam on July 20 under a typical mid-summer pattern of variable Atlantic flow, moderate onshore winds, and patchy cloud or light rain that limits peak insolation. This aligns with climatological averages near 22°C while explaining the tight clustering of market probabilities around 19–21°C, as small shifts in cloud timing or frontal passage could trim or add 1–2°C. Marine air influence from the North Sea further caps extremes, with low likelihood of the warmer 23–24°C outcomes absent a strong ridge build-up. Updated short-range runs and KNMI briefings over the next 48 hours will refine these thresholds ahead of market resolution.
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 July 20?
21°C 34%
20°C 26%
19°C 22%
18°C 15%
16°C or below
1%
17°C
2%
18°C
15%
19°C
22%
20°C
26%
21°C
34%
22°C
12%
23°C
8%
24°C
3%
25°C
1%
26°C or higher
1%
21°C 34%
20°C 26%
19°C 22%
18°C 15%
16°C or below
1%
17°C
2%
18°C
15%
19°C
22%
20°C
26%
21°C
34%
22°C
12%
23°C
8%
24°C
3%
25°C
1%
26°C or higher
1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Amsterdam Airport Schiphol Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jul 18, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Amsterdam Airport Schiphol Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Recent model guidance from sources like ECMWF and regional outlooks points to a maximum of 20–22°C in Amsterdam on July 20 under a typical mid-summer pattern of variable Atlantic flow, moderate onshore winds, and patchy cloud or light rain that limits peak insolation. This aligns with climatological averages near 22°C while explaining the tight clustering of market probabilities around 19–21°C, as small shifts in cloud timing or frontal passage could trim or add 1–2°C. Marine air influence from the North Sea further caps extremes, with low likelihood of the warmer 23–24°C outcomes absent a strong ridge build-up. Updated short-range runs and KNMI briefings over the next 48 hours will refine these thresholds ahead of market resolution.
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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